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Patents for J. S. Clapper | |||||
Number | Date | Patentee | Title | Type | |
1,138,996 | May 11, 1915 | G.T. Strite, F.H. Bierman | Traction-engine | tractors | |
1,194,569 | Aug. 15, 1916 | G.T. Strite, F.H. Bierman | Drive-gearing for traction-engines | motor vehicle gearing |