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| Patents for Clarence E. Mehlhope | |||||
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| Number | Date | Patentee | Title | Type | |
| 607,914 | Jul. 26, 1898 | E. Christman | Seeding Machine | seeders | |
| 631,844 | Aug. 29, 1899 | T. Brennan, Jr. | Seeding-Machine | seeders | |
| 754,620 | Mar. 15, 1904 | J.B. Stanwood | Valve-gearing for steam-engines | steam engine valve gear | |
| 807,104 | Dec. 12, 1905 | L.W. Anderson | Change-speed gearing | metal shapers | |
| 807,123 | Dec. 12, 1905 | P.G. March | Shaping-machine | metal shapers | |
| 807,404 | Dec. 12, 1905 | J.C. Steen | Shaping-machine | metal shapers | |