Number | Name | Date | Kind |
---|---|---|---|
4703811 | Lam | Nov 1987 | |
4834195 | Robinson | May 1989 | |
5018588 | Haberer | May 1991 | |
5263545 | Tudora et al. | Nov 1993 | |
5303783 | Begnaud et al. | Apr 1994 | |
5575344 | Wireman | Nov 1996 | |
5622232 | Whisenhunt | Apr 1997 | |
5762150 | Cheng et al. | Jun 1998 | |
5791822 | Edmondson et al. | Aug 1998 |
Entry |
---|
“Directional Drilling”, Jun. 1998 (entire magazine). |
Hutte & Co. Bohrtechnik Anchor Rig HBR 506 (date unknown) 1 page. |
Val D' or 3000 B Hydrualic Diamond Drill (date unknown) 2 pages. |
Diamec® 262—Atlas Copco (date unknown). |