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| Patents for Oliver D. Warfield | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 267,290 | Nov. 07, 1882 | O.D. Warfield | Calipers | |
 | 267,732 | Nov. 21, 1882 | O.D. Warfield | Bit-stock | |
 | 288,961 | Nov. 20, 1883 | O.D. Warfield | Calipers | |
| 297,884 | Apr. 29, 1884 | O.D. Warfield | Lathe Dog | ||
 | 351,474 | Oct. 26, 1886 | J. Stevens, O.D. Warfield | Rapidly Adjustable Nut for Calipers and Dividers | |
 | 364,067 | May 31, 1887 | O.D. Warfield | Calipers | |
 | 380,836 | Apr. 10, 1888 | O.D. Warfield | Combined Outside & Inside Calipers | |