| L. Ash et al | Patent 754,633 |
| L. Coes et al | Patent 538,411 |
| L. Coes | Patent 229,673 |
| | Patent 301,681 |
| | Patent D32,656 |
| L.S. Starrett Company | See also Starrett, L.S. Company |
| LACO | See also Lakeside Forge Co. |
| | Adjustable Wrench, 6 Inch |
| | Brand Used by Lakeside Forge Co. |
| LAKESIDE | Trademark for Lakeside Forge Co. |
| LAMSON | Trademark for Lamson & Sessions |
| LARCO | Trademark for Larco Wrench & Mfg. |
| LAWSON | Trademark for U.S. Hame Company |
| LE GRAN | Trademark for Vlchek Tool Co. |
| LOBSTER TOOLS | Trademark for Lobtex Company |
| LOWELL | Trademark for Lowell Wrench Co. |
| LUBRING | Trademark for Utica Drop Forge & Tool |
| LaPointe, G.M. | Patent 2,920,518 |
| Lake Superior Wrench Co. | See also Superior Wrench |
| Lakeside Forge Co. | See also LACO |
| | Bicycle Wrench, 4 Inch |
| | Company History |
| | LACO Brand |
| | LAKESIDE Trademark |
| | Model 304 Wrench, 7/8x1 |
| | No. 37 Wrench |
| | Open-End Wrench, 9/16x3/4 |
| | Patents Issued |
| | Tool Identification |
| | Trademarks Registered |
| Lakeside | See also Ward's Lakeside |
| | Brand Used by Montgomery Ward & Co., 2 |
| Lamson & Sessions | Company History |
| | LAMSON Trademark |
| | Model 1 Wrench |
| | Monkey Wrench, 8 Inch |
| | Patents Issued |
| Lane, W.B. | Patent 969,379 |
| | Patent RE13,205 |
| Lane, Will B. Co. | Company History |
| | Patents Issued |
| | Ratchet, 1/2-Hex Drive |
| | Screwdriver, Ratchet |
| | Socket Set, 1/2-Hex Drive |
| | Trademarks Registered |
| | Unique [logo] Trademark |
| Lang, J.W. | Patent 2,500,835, 2, 3, 4, 5, 6, 7 |
| | Patent 4,748,875 |
| | Patent 4,819,521 |
| Langline | See also A&E Manufacturing |
| | Model RBM-1314 Wrench |
| | Trademark for A&E Manufacturing |
| Larco Wrench & Mfg. | Company Profile |
| | LARCO Trademark |
| | Patents Issued |
| | Successor to Cochran Pipe Wrench Mfg. |
| | Trademarks Registered |
| Larson Tool & Stamping | Company History |
| | Model 9X Ratchet |
| | Tool Identification |
| | Trademarks Registered |
| Larson, J.V. et al | Patent 1,602,620 |
| Larson, J.V. | Patent 1,495,751 |
| | Patent 1,602,620 |
| | Patent 1,830,033, 2 |
| | Patent 2,351,821 |
| | Patent 2,623,428 |
| | Patent 2,645,145 |
| | Patent 2,713,280 |
| Larson, K.R. et al | Patent 2,367,224 |
| Larson, K.R. | Patent 2,312,104 |
| | Patent 2,314,623 |
| | Patent 2,343,380 |
| | Patent 2,374,217 |
| Larson, N.G. | Patent 1,419,391 |
| Lathan Auto Supply | 1918 Catalog Walden No. 12 Set |
| | Catalog No. 4 (1918) |
| | Listings for Walden |
| Lawrence, S.O. | Patent 1,511,226, 2 |
| Lawson, G.C. | Patent 1,362,014, 2 |
| Layne, M.E. & S.N. Hall | Patent 889,244 |
| | Patent 889,245 |
| | Patent 889,246 |
| | Patent 900,861 |
| Lea Way Hand Tool | See also GearWrench |
| | Acquisition by Danaher |
| | Company History |
| | Manufacturing Dates |
| | Trademarks Registered |
| Lectrolite Corp. | Acquisition by Symington Wayne |
| | Association with S-K |
| | Company History |
| | Lectrolite [logo] Trademark |
| | Patents Issued |
| | Production for Dunlap |
| | S-K Lectrolite Trademark |
| | Trademarks Registered |
| | Tru-Fit Trademark |
| | Tru-Fit [logo] Trademark |
| Lectrolite [logo] | Trademark for Lectrolite Corp. |
| Lectrolite | See also S-K Lectrolite |
| | See also Tru-Fit |
| | Box-End Wrench, 3/4x25/32, 2 |
| | Combination Pliers, 7 Inch |
| | Model 3003 Wrench |
| | Model 3004 Wrench |
| | Model 3006 Wrench |
| | Model B-2628 Wrench |
| | Model C-28 Wrench |
| | Model MB-1618 Wrench |
| | Model O-1922 Wrench |
| | Tappet Wrench, 1/2x9/16 |
| | Tappet Wrench, 5/8x11/16 |
| Lee, W.R. | Patent 1,565,473 |
| Lenker, P.E. at al | Patent 3,941,017, 2 |
| Lenker, P.E. et al | Patent 3,941,017 |
| Lenker, P.E. | Patent 3,803,954 |
| | Patent 4,108,027 |
| Leopold, P.F. | Patent 3,298,516 |
| Levandowske, L. | Patent 1,699,897 |
| Levy, J. | Patent 728,945 |
| Life-Time | Trademark for Billings & Spencer |
| Lindsay, J. | Patent 509,920 |
| Lindström, F.E. | Company Profile |
| | Diagonal Cutters, 4 Inch |
| | Model PR-50 Pliers |
| Ling, D. et al | Patent 6,134,990 |
| | Patent 6,230,591 |
| Ling, D. | Patent 6,257,096 |
| Lisle Corporation | Company History |
| | Trademarks Registered |
| Lisle | Reversible Snap-Ring Pliers |
| Little Red Devil | Trademark for Smith & Hemenway |
| Lobster [logo] | Trademark for Lobtex Company, 2, 3 |
| Lobster | Combination Pliers, 6 Inch |
| | Side-Cutting Pliers, 7 Inch, 2 |
| Lobtex Company | See also New Lobster |
| | Company Profile |
| | JIS Certification |
| | LOBSTER TOOLS Trademark |
| | Lobster [logo] Trademark, 2, 3 |
| | Patents Issued |
| | Production for Fuller |
| | Production for Globemaster |
| | Production for Sears Roebuck |
| | Tool Identification |
| | Trademarks Registered |
| Loc-Rite | Model 23336 Wrench |
| | Trademark for Kelsey Hayes Corp. |
| Lock-On | Trademark for Blackhawk Mfg. |
| Logo Image | 3-Blocks, 2 |
| | 3-Diamonds, 2 |
| | 3-Ki-Circle, 2 |
| | 3-Ovals, 2 |
| | 3-Peaks-Circle, 2 |
| | 5-5-Circle, 2 |
| | A-Circle, 2 |
| | A-Horseshoe, 2 |
| | A-Triangle, 2 |
| | ACCo-Triangle, 2 |
| | ASH-Hex, 2 |
| | AZ-Circle, 2 |
| | Anvil-Logo, 2 |
| | Arrowhead, 2 |
| | B-Circle, 2 |
| | B-Diamond, 2 |
| | B-Hex, 2 |
| | B-Shield, 2 |
| | B-Triangle, 2 |
| | BC-Circle, 2 |
| Logo Image (Cont.) | BHM-Logo, 2 |
| | BMCo-Oval, 2 |
| | C-Circle |
| | C-Wedge |
| | CAT-Circle, 2 |
| | CFT-Oval, 2 |
| | CH-Logo, 2 |
| | CSCo-Logo, 2 |
| | CT-Logo, 2 |
| | CTCo-Logo, 2 |
| | CV-Circle, 2 |
| | D-Diamond, 2 |
| | D-Trapezoid, 2 |
| | DIF-Square, 2 |
| | DTM-Hex, 2 |
| | Diamond-Horseshoe, 2 |
| | Dunlap-Oval |
| | FTF-Triangle, 2 |
| | G-Diamond, 2 |
| | GTD-Logo |
| Logo Image (Cont.) | Guaranteed-Logo |
| | H-Circle, 2, 3 |
| | H-Diamond, 2 |
| | H-Shield, 2 |
| | HIT-Gear, 2 |
| | HP-Shield, 2 |
| | HT-Circle, 2 |
| | HTM-Circle, 2 |
| | I-Circle, 2 |
| | JIS-Circle, 2 |
| | K-Circle, 2 |
| | K-Diamond, 2 |
| | KTC-Double-Circle, 2 |
| | KTC-Oval, 2 |
| | Kyo-Circle |
| | L-Hex, 2 |
| | L-Keystone, 2 |
| | Lineman-Circle, 2 |
| | Lobster-Logo, 2 |
| | M-Circle, 2 |
| Logo Image (Cont.) | M-Diamond, 2 |
| | MH-Circle, 2 |
| | MJ-Circle, 2 |
| | MM-Oval |
| | MW-Oval, 2 |
| | NB-Circle, 2 |
| | OT-Circle, 2 |
| | OTC-Shield, 2 |
| | P-Circle, 2 |
| | PC-Hex, 2 |
| | PL-Diamond, 2 |
| | PS-Oval, 2 |
| | Pexto-Oval, 2 |
| | RI-Circle, 2 |
| | RK-Circle, 2 |
| | Rising-Sun |
| | Round-H-Circle, 2 |
| | S-Circle, 2 |
| | S-Circle-2, 2 |
| | SDF-Logo, 2 |
| Logo Image (Cont.) | SK-Diamond, 2 |
| | SMCo-Circle, 2 |
| | SS-Logo, 2 |
| | SW-Hex, 2 |
| | SW-Oval, 2 |
| | Snail-Logo, 2 |
| | Strong-Arm, 2 |
| | Super-Diamond, 2 |
| | Swastika, 2 |
| | T-Circle, 2 |
| | TTCo-Triangle |
| | TW-Circle, 2 |
| | US-Diamond, 2 |
| | USMC-Script, 2 |
| | V-Shield, 2 |
| | W-Diamond, 2 |
| | W-Sword, 2 |
| | WB-Diamond, 2 |
| | WBCo-Diamond, 2 |
| | WKCo-Triangle, 2 |
| Logo Image (Cont.) | WMCo-Circle, 2 |
| | WW-Oval, 2 |
| | X-Circle, 2 |
| | X-Logo, 2 |
| | Y-Circle, 2, 3 |
| Long, J.R. | Patent 1,968,783 |
| | Patent 818,180 |
| | Patent 890,146, 2 |
| | Patent 890.146, 2, 3 |
| | Patent 955,974, 2, 3, 4 |
| Long, W.T. | Patent 1,181,466 |
| | Patent 1,270,848 |
| | Patent 1,408,524, 2 |
| | Patent 1,540,642 |
| Longanecker, S. | Patent 891,088 |
| Look ... Triangles [logo] | Trademark for Allen Mfg. |
| Lord, P. | Patent 666,202, 2, 3, 4, 5, 6 |
| Los Angeles Tool Co. | Company Profile |
| | Speeder, 7/16-Hex Drive 15 Inch |
| Lowe, J.A. | Patent 518,041 |
| Lowe, J.G. | Patent 536,882 |
| Lowell Wrench Co. | Company History |
| | LOWELL Trademark |
| | Patents Issued |
| | Ratchet, No. 21 1/2-Drive |
| | Ratchet, No. 50 |
| | Ratchet, No. 51 |
| | Trademarks Registered |
| Lowentraut, P. Mfg. | See also Lowentraut |
| | Company Profile |
| | Tool Identification |
| | U.S. Brand |
| Lowentraut | Bicycle Wrench, 5 Inch |
| | Gas and Burner Pliers, 10 Inch |
| | Gas and Burner Pliers, 6 Inch |
| | Gas and Burner Pliers, 8 Inch |
| Loxocket | Trademark for Snap-on Tools Corp. |
| Luce, T.C. | Patent 1,141,877, 2 |
| Lueck, F.R. Mfg. | Company Profile |
| Lueck, F.R. | Patent 1,430,574 |
| Lundin, D.M.E. | Patent 2,978,081 |
| Lynch, E.E. et al | Patent 1,533,602 |
| | Patent 1,634,908 |
| Lyons, F.G. | Patent 2,780,124 |