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Patents for Francis C. Sanford | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 1,483,748 | Feb. 12, 1924 | F.C. Sanford | Grinding Machine | |
1,611,135 | Dec. 14, 1926 | F.C. Sanford | Grinding Machine | ||
1,611,136 | Dec. 14, 1926 | F.C. Sanford | Centerless Grinding Machine for Tapering Drills and the Like |