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Patents for Clifford E. Martin | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 534,180 | Feb. 12, 1895 | C.E. Martin, A.J. Smart | Drilling-machine | |
![]() | 916,344 | Mar. 23, 1909 | C.E. Martin | Core-Box Plane |