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