Number | Date | Country | Kind |
---|---|---|---|
3407427 | Feb 1984 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
1506119 | Hansen | Aug 1924 | |
2081302 | Jarvis | May 1937 | |
2996061 | Miller | Aug 1961 | |
3176675 | Bomba | Apr 1965 | |
3430526 | Valenziano | Mar 1969 | |
3494348 | Lindblad | Feb 1970 | |
3763601 | Schwarzkopf et al. | Oct 1973 | |
3898772 | Sawluck | Aug 1975 | |
4056152 | Lacey | Nov 1977 | |
4098362 | Bonnice | Jul 1978 | |
4208154 | Gundy | Jun 1980 |
Number | Date | Country |
---|---|---|
277114 | Dec 1969 | ATX |
Entry |
---|
Geoset* Drill Diamond "Application and Design Guidelines" Brochure Sep., 1981. |