Number | Name | Date | Kind |
---|---|---|---|
4664184 | Grigar | May 1987 | |
4846272 | Leggett | Jul 1989 | |
4969524 | Whiteley | Nov 1990 |
Number | Date | Country |
---|---|---|
0 233 750 A2 | Aug 1987 | EPX |
2 171 434 | Aug 1986 | GBX |
9801377 | Mar 1998 | GBX |
Entry |
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Owen Oil Tools product literature, Feb. 1995, Fort Worth, Texas (2 pages). |
Schlumberger Perforating Services manual, 1993, Houston, Texas(5 pages). |
Schlumberger RPPV Maintenance Manual, Mar. 1994, Rosharon, Texas (10 pages). |