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| Patents for F. M. Donsbach | |||||
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| Number | Date | Patentee | Title | Type | |
| 706,850 | Aug. 12, 1902 | L.S. Pitcher | Hydraulic jack | hydraulic jacks | |
| 847,557 | Mar. 19, 1907 | P. Dosch | Miter-box | miter boxes | |