| Number | Name | Date | Kind |
|---|---|---|---|
| D197205 | Estwing | Dec 1963 | |
| 664494 | Olsen | Dec 1900 | |
| 743183 | Miller | Nov 1903 | |
| 1221323 | Hill | Apr 1917 | |
| 1241179 | White | Sep 1917 | |
| 1445263 | Asper | Feb 1923 | |
| 1486820 | Wilder | Mar 1924 | |
| 2863635 | Fandrich | Dec 1958 | |
| 2896910 | Cooper et al. | Jul 1959 | |
| 4039140 | Pulliam | Aug 1977 |
| Entry |
|---|
| Goldbatt Tools Catalog, 1970, p. 33, Ripping Bars. |