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| Patents for William H. Bates | |||||
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| Number | Date | Patentee | Title | Type | |
| 83,405 | Oct. 27, 1868 | J.L. Otis | Improvement in Grinding Machines | tool grinders | |
| 242,067 | May 24, 1881 | R. Smith | Paper Gage | measurement gauges | |
| 943,010 | Dec. 14, 1909 | C.O. Dost | Surface Gage | surface gauges | |