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| Patents for William H. Schmidt | |||||
| Number | Date | Patentee | Title | Type | |
| 1,691,581 | Nov. 13, 1928 | W.H. Schmidt, M.J. Kujawski, W.C. Dallmann, G.C. Moerschel, P.O. Dallmann, A.R. Buchholz, T.G. Mueller | Saw-rig attachment for tractors | circular sawmills | |