Patent Grant
D422473
| Number | Name | Date | Kind |
|---|---|---|---|
| D57706 | Moorhouse | Apr 1921 | |
| D161810 | Alexander | Feb 1951 | |
| D182076 | MacMinn | Feb 1958 | |
| D182077 | MacMinn | Feb 1958 | |
| D182132 | MacMinn | Feb 1958 | |
| D182133 | MacMinn | Feb 1958 | |
| D212165 | Newton | Sep 1968 | |
| D237582 | Mostyn | Nov 1975 | |
| D280971 | Newton | Oct 1985 | |
| D285284 | Blomqvist | Aug 1986 | |
| D303208 | Chung | Sep 1989 | |
| D322021 | Hsu | Dec 1991 | |
| D325863 | Chen | May 1992 | |
| D327405 | Brinkman | Jun 1992 | |
| D329796 | Olson et al. | Sep 1992 | |
| D372179 | Spirer | Jul 1996 | |
| D381884 | Spirer | Aug 1997 | |
| 691309 | Goldsmith | Jan 1902 | |
| 1709240 | Wass | Apr 1929 | |
| 2325227 | Chaddock | Jul 1943 | |
| 2804109 | Fatica | Aug 1957 | |
| 3762453 | Merrow et al. | Oct 1973 | |
| 3786847 | Schera, Jr. | Jan 1974 | |
| 3901297 | Young | Aug 1975 | |
| 4399978 | Moore | Aug 1983 | |
| 4422620 | Nitzberg | Dec 1983 | |
| 4440206 | Dart | Apr 1984 | |
| 4805494 | Santoro | Feb 1989 | |
| 4998996 | Belanger | Mar 1991 | |
| 5029496 | Catania | Jul 1991 | |
| 5058862 | Schlegl | Oct 1991 | |
| 5280738 | Liou | Jan 1994 | |
| 5329834 | Wang | Jul 1994 | |
| 5372053 | Lee | Dec 1994 |
| Entry |
|---|
| Stanley Tools Catalog, 1974, p.25, Hammers. |
| True Temper Tools Catalog, 1985, p.1, Hammers. |
