Number | Name | Date | Kind |
---|---|---|---|
5154231 | Bailey et al. | Oct 1992 | |
5277251 | Blount et al. | Jan 1994 | |
5301760 | Graham | Apr 1994 | |
5322127 | McNair et al. | Jun 1994 | |
5335737 | Baugh | Aug 1994 | |
5431223 | Konopczynski | Jul 1995 | |
5439051 | Kennedy et al. | Aug 1995 | |
5467819 | Braddick | Nov 1995 |
Number | Date | Country |
---|---|---|
0 353 962 A2 | Jul 1989 | EPX |
0 442 675 A2 | Feb 1991 | EPX |
2 227 038 | Jul 1990 | GBX |
2 258 479 | Feb 1993 | GBX |
Entry |
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Weatherford fishing and Rental Tools, "Whipstocks and Whipstock Mills" brochure, published Dec. 1994 by Weatherford International Incorporated, P.O. Box 27608 Houston, Texas 77227. |
Front and back cover and pp. 2826-2830 of the TIW 1994-95 General Catalog, published 1993 by TIW Corporation, P.O. Box 35729, Houston, Texas 77235. |