Alloy Artifacts |
| Company Name | ID | Factory Name | Number | Cert Date | Rept Date | Class | Suffix | Event | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 安中工具 | Shijo (四条) (1950-1984) | 1448 | 1952-05-13 | 1952-05-13 | B4604 | New | MR 1952-09 | ||
| Shijo (四条) (1950-1984) | 1448 | 1984-03-05 | 1984-03-05 | B4604 | NH | Revoke | MR 1984-03; JIS release |