Number | Name | Date | Kind |
---|---|---|---|
2990025 | Talbert et al. | Jun 1961 | A |
3401759 | White | Sep 1968 | A |
4106578 | Beyer | Aug 1978 | A |
4604106 | Hall et al. | Aug 1986 | A |
4629373 | Hall | Dec 1986 | A |
4694918 | Hall | Sep 1987 | A |
4811801 | Salesky et al. | Mar 1989 | A |
4832139 | Minikus et al. | May 1989 | A |
5145016 | Estes | Sep 1992 | A |
5172777 | Siracki et al. | Dec 1992 | A |
5172779 | Siracki et al. | Dec 1992 | A |
5197555 | Estes | Mar 1993 | A |
5287936 | Grimes et al. | Feb 1994 | A |
5322138 | Siracki et al. | Jun 1994 | A |
5323865 | Isbell et al. | Jun 1994 | A |
5341890 | Cawthorne et al. | Aug 1994 | A |
5346026 | Pessier et al. | Sep 1994 | A |
5351768 | Scott et al. | Oct 1994 | A |
5351770 | Cawthorne et al. | Oct 1994 | A |
5353885 | Hooper et al. | Oct 1994 | A |
5372210 | Harrell | Dec 1994 | A |
5407022 | Scott et al. | Apr 1995 | A |
5415244 | Portwood | May 1995 | A |
5421424 | Portwood et al. | Jun 1995 | A |
5479997 | Scott et al. | Jan 1996 | A |
5542485 | Pessier et al. | Aug 1996 | A |
Number | Date | Country |
---|---|---|
473797 | Sep 1975 | SU |
Entry |
---|
Smith International, Drawing of 22 Inch Roller Cone Bit, (Undated).** |
Smith International, Drawing of Bottom Hole Pattern for A Roller Cone Bit, (Undated).** |
Smith International, Charts 1-5 of Roller Cone Bits Having Gage and Staggard Row Cutters, (Undated).* |