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| Patents for Orvis W. Bullock | |||||
| Number | Date | Patentee | Title | Type | |
| 251,182 | Dec. 20, 1881 | O.W. Bullock | Tweezers | watchmaker | |
| 251,183 | Dec. 20, 1881 | O.W. Bullock | Combination watch-hand remover and case-opener | watchmaker | |