Number | Name | Date | Kind |
---|---|---|---|
2029598 | Timbs et al. | Feb 1936 | |
2196652 | Baker | Apr 1940 | |
2599039 | Baker | Jun 1952 | |
2630179 | Brown | Mar 1953 | |
2647582 | Brown et al. | Aug 1953 | |
3076509 | Burns et al. | Feb 1963 | |
3322197 | Baker et al. | May 1967 | |
3616850 | Scott | Nov 1971 | |
3777819 | Delano | Dec 1973 | |
3779270 | Davis | Dec 1973 | |
3971436 | Lee | Jul 1976 | |
4234216 | Swanson et al. | Nov 1980 | |
4246967 | Harris | Jan 1981 | |
4290482 | Brisco | Sep 1981 | |
4302033 | Evans et al. | Nov 1981 | |
4427065 | Watson | Jan 1984 | |
4624312 | McMullin | Nov 1986 | |
4722389 | Arnold | Feb 1988 | |
4995457 | Baldridge | Feb 1991 |
Entry |
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Halliburton Services Sales & Service Catalog No. 43 (1985), pp. 2423-2426. |
Halliburton Company Advertising Brochure, SSR (Subsurface Release Cementing Plug System), 3 pages, Jul. 15, 1981. |
Composite Catalog of Oil Field Equipment & Services, 35th Rev., 1982-83, vol. 6, Bowen Tools, Inc., 2 pages. |
Composite Catalog of Oil Field Equipment & Services, 35th Rev., 1982-83, vol. 1, A-Z International Tool Company, p. 18. |
Roto-Tek advertising brochure, four pages, dated Nov. 17, 1989. |
Lindsey Completion Systems, Advertisement, Cementing Equipment, 1 page, Nov. 17, 1987. |