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| Patents for John D. Bouker | |||||
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| Number | Date | Patentee | Title | Type | |
| 534,180 | Feb. 12, 1895 | C.E. Martin, A.J. Smart | Drilling-machine | drill presses | |
| 871,451 | Nov. 19, 1907 | A.J. Smart | Screw-cutting die and holder therefor | tap wrenches and die stocks | |
| 1,061,129 | May 06, 1913 | C.C. Russell | Screw-plate | tap and die holders | |