Patent Grant
D350892
| Number | Name | Date | Kind |
|---|---|---|---|
| 88390 | Johnson | Mar 1869 | |
| D154898 | Blackmon | Aug 1949 | |
| D277534 | Warmath | Feb 1985 | |
| D302654 | Cetrone | Aug 1989 | |
| D317116 | Nimtz | May 1991 | |
| D322390 | Nimtz | Dec 1991 | |
| 488522 | Jones | Dec 1892 | |
| 1542208 | Berger | Jan 1924 | |
| 1844774 | Locki | Nov 1931 | |
| 2471606 | Burns | Apr 1946 | |
| 2525985 | Weymouth | Oct 1950 | |
| 2591477 | Tegarty | Apr 1952 | |
| 2667678 | Hargrave et al. | Feb 1954 | |
| 2885758 | Russo | May 1959 | |
| 3341909 | Havener | Sep 1967 | |
| 3348275 | Lawrence | Oct 1967 | |
| 3456262 | Coon | Jul 1969 | |
| 3579751 | Jonckheere | May 1971 | |
| 3779108 | Reiter | Dec 1973 | |
| 3934316 | Driscoll | Jan 1976 | |
| 4063333 | Schweitzer | Dec 1977 | |
| 4071930 | Tanaka | Feb 1978 | |
| 4079765 | Hatayan | Mar 1978 | |
| 4145793 | Berlet | Mar 1979 | |
| 4192441 | Batts | Mar 1980 | |
| 4277864 | Orson, Sr. | Jul 1981 | |
| 4312089 | Taylor | Jan 1982 | |
| 4395799 | Batts | Aug 1983 | |
| 4506416 | Ohminato et al. | Mar 1985 | |
| 4514885 | Delahousse et al. | May 1985 | |
| 4614008 | Brill et al. | Sep 1986 | |
| 4616113 | Jank et al. | Oct 1986 | |
| 4722120 | Lu | Feb 1988 | |
| 4813107 | Cetrone | Mar 1989 | |
| 4959892 | Wang | Oct 1990 | |
| 4971055 | von Zeppelin | Nov 1990 | |
| 5079808 | Brown | Jan 1992 |
| Number | Date | Country |
|---|---|---|
| 398487 | Mar 1966 | DEX |
| 1391713 | Jun 1965 | FRX |
| 796846 | Jun 1958 | GBX |
| Entry |
|---|
| Pony Spring Clamp (Style 32) (catalog sheet). |
| Pony Spring Clamp (Quaker State Woodworking Supply catalog sheet). |
| Warren Tool Group Spring Clamp (IMPO No. 145). |
| Warren Tool Group (Do it Yourself Retailing, Mar. 1993, p. 69). |
| Spring Clamp (Woodcraft catalog p. 56). |
| "Spring Clamp Sets" (catalog sheet, p. 47). |
