Number | Date | Country | Kind |
---|---|---|---|
77 14626 | May 1977 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
1437812 | MacMillan | Dec 1922 | |
2538538 | Stempel et al. | Jan 1951 | |
2557613 | Palensky | Jun 1951 | |
2624487 | Fry | Jan 1953 | |
2876924 | Chrisman | Mar 1959 |
Number | Date | Country |
---|---|---|
410885 | May 1934 | GBX |
Entry |
---|
Hardware Age, 1/5/56, p. 23, Safety-Chef. |