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 | |
| Nishiotogawa (西小投川) (1939-1984) | 654 | 1951-06-28 | 1955-12-31 | B4604 | Status | 1955 FNL | ||
| Nishiotogawa (西小投川) (1939-1984) | 654 | 1984-06-06 | 1984-06-06 | B4604 | Revoke | Image on CWC site |