Alloy Artifacts |
| Company Name (ID) | Factory Name | Number | Cert Date | Rept Date | Class | Suffix | Event | Notes |
|---|---|---|---|---|---|---|---|---|
| 大矢根利器製作所 | Nio-cho (仁尾) (1950-) | 3489 | 1954-10-21 | 1955-12-31 | B4623 | Status | 1955 FNL | |
| Nio-cho (仁尾) (1950-) | 5394 | 1957-05-27 | 1958-12-31 | B4623 | NH | Status | 1958 FNL | |
| Nio-cho (仁尾) (1950-) | 5394 | 1957-05-27 | 1972-12-31 | B4623 | NH | Status | 1972 CL |