Alloy Artifacts |
| Company Name | ID | Factory Name | Number | Cert Date | Rept Date | Class | Suffix | Event | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 大阪鍛工 | T○ | Moriyama (守山) (1939-1981) | 1978 | 1952-11-10 | 1952-11-10 | B4630 | New | MR 1952-11 | |
| T○ | Moriyama (守山) (1939-1981) | 1978 | 1981-11-30 | 1981-11-30 | B4630 | Revoke | MR 1981-11; Factory closed |