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| All Patents in class 294/91 | |||||
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| Number | Date | Patentee | Title | Type | |
| 94,484 | Sep. 07, 1869 | J.A. Fleming | Improvement in Swivel-Wrench and Clamp For Artesian Wells | wrenches | |
| 241,415 | May 10, 1881 | W.S. Phillis | Sucker Rod Joint | auxiliary wrenches | |
| 246,342 | Aug. 30, 1881 | W.S. Roberts | Sucker Rod Wrench and Elevator | wrenches | |
| 492,380 | Feb. 28, 1893 | C.S. Ahner | Sucker Rod Clamp Or Wrench | wrenches | |
| 502,169 | Jul. 25, 1893 | F.E. Boylan | Elevator For Sucker Rods | wrenches | |
| 512,938 | Jan. 16, 1894 | D.W. Black | Sucker Rod Elevator and Wrench | wrenches | |