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| Patents for J. A. Cantin | |||||
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| Number | Date | Patentee | Title | Type | |
| 526,105 | Sep. 18, 1894 | A.G. Hollister | Depth Gage | micrometer depth gauges | |
| 531,435 | Dec. 25, 1894 | H.J. Cogswell | Watchmaker's Length Gage | special purpose gauges | |