Alloy Artifacts |
| Company Name | ID | Factory Name | Number | Cert Date | Rept Date | Class | Suffix | Event | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 第 一工業 所 | DIMF | Nishiotogawa (西小投川) (1939-1984) | 654 | 1951-06-28 | 1951-06-28 | B4604 | New | MR 1952-01 | |
| DIMF | Nishiotogawa (西小投川) (1939-1984) | 654 | 1951-06-28 | 1955-12-31 | B4604 | Status | 1955 FNL | ||
| DIMF | Nishiotogawa (西小投川) (1939-1984) | 654 | 1984-06-06 | 1984-06-06 | B4604 | Revoke | Image on CWC site |