| Number | Name | Date | Kind |
|---|---|---|---|
| D237582 | Mostyn | Nov 1975 | |
| D322021 | Hsu | Dec 1991 | |
| D325863 | Chen | May 1992 | |
| 4440206 | Dart | Apr 1984 | |
| 4805494 | Santoro | Feb 1989 | |
| 5280738 | Liou | Jan 1994 |
| Entry |
|---|
| Stanley Tools Catalog, 1974, p. 25, Hammers. |
| True Temper Tools Catalog, 1985, 1985, p. 1, Hammers. |