Number | Name | Date | Kind |
---|---|---|---|
RE29638 | Nutter | May 1978 | |
2092337 | Spencer | May 1935 | |
2169559 | Halliburton | Jul 1937 | |
2330509 | McCullough | Apr 1940 | |
2607220 | Martin | Apr 1947 | |
2760408 | Taylor | May 1953 | |
2760581 | Johnston | Feb 1954 | |
2859697 | Long | Jun 1954 | |
3008411 | Conrad | Nov 1961 | |
3011551 | Young et al. | Dec 1961 | |
3029732 | Greene | Apr 1962 | |
3189094 | Hyde | Jun 1965 | |
3530948 | Garrett | Sep 1970 | |
3800705 | Tamplen | Apr 1974 | |
4369654 | Hallmark | Jan 1983 |
Entry |
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Sales brochure of Johnston Perforating Services, Johnston Testers, Inc. (now Johnston-Macco, a division of Schlumberger Technology Corporation), Houston, TX 1948. |
Johnston "Shoot-N-Test", 1948 General Sales Catalog appearing in The Composite Catalog of Oil Field and Pipeline Equipment vol. I, pp. 2071-2075 (Gulf Publishing Company, 16th ed., 1948). |