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| Patents for H. E. Oliphant | |||||
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| Number | Date | Patentee | Title | Type | |
| 527,156 | Oct. 09, 1894 | W.E. Pugsley | Wrench | alligator wrenches | |
| 642,709 | Feb. 06, 1900 | M. Otteson, O. Otteson | Pipe Wrench | pipe wrenches | |
| 669,742 | Mar. 12, 1901 | A. Dudly | Wedge-Grip Sliding-Jaw Wrench | quick adjust wrenches | |
| 704,582 | Jul. 15, 1902 | G. Schaub | Wrench | tire bolt wrenches | |