Patent Grant
D347232
| Number | Name | Date | Kind |
|---|---|---|---|
| 3356418 | Healey et al. | Dec 1967 | |
| 3830546 | Kniff | Aug 1974 | |
| 4497520 | Ojanen | Feb 1985 | |
| 4725099 | Penkunas et al. | Feb 1988 | |
| 4729603 | Elfgen | Feb 1988 | |
| 4865392 | Penkunas et al. | Sep 1989 | |
| 4911503 | Shiffler et al. | Mar 1990 | |
| 4911504 | Shiffler et al. | Mar 1990 | |
| 4938538 | Larsson et al. | Jul 1990 | |
| 4981328 | Stiffler et al. | Jan 1991 | |
| 5054217 | Nilsson et al. | Oct 1991 | |
| 5131725 | Rowlett et al. | Jul 1992 | |
| 5141289 | Stiffler | Aug 1992 | |
| 5219209 | Prizzi et al. | Jun 1993 |
| Number | Date | Country |
|---|---|---|
| 0052978 | Jun 1982 | EPX |
| 0122893 | Oct 1984 | EPX |
| 0160757 | Nov 1985 | EPX |
| 2846744 | Apr 1980 | DEX |
| 3510072 | Mar 1985 | DEX |
| 825924 | Sep 1975 | SUX |
| 519538 | Jul 1976 | SUX |
| 751991 | Feb 1978 | SUX |
| 899916 | Jan 1982 | SUX |
| Entry |
|---|
| Carbide tip depicted in Multi-Metals Dwg. C-1445-7 (Sep. 5, 1973). |
| Carbide tip depicted in American Mine Tool Dwg. T-104-76 (Sep. 14, 1982). |
| Carbide tip depicted in Kennametal Dwg 921-01135 (Aug. 18, 1983). |
| Carbide tip depicted in American Mine Tool Dwg T-104-13 (Nov. 30, 1982). |
| Carbide tip depicted in American Mine Tool Dwg. T-104-14 (Aug. 31, 1984). |
| Carbide tip depicted in Kennametal Dwg. DEV-C-1736 (Jan. 31, 1980). |
| Carbide tip depicted in Kennametal Dwg. 921-01171 (Dec. 4, 1986). |
| Carbide tip depicted in Kennametal Dwg. 921-01173 (Mar. 2, 1987). |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 992950 | Dec 1992 |
