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| Patents for Francis T. Chambers | |||||
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| Number | Date | Patentee | Title | Type | |
| 451,494 | May 05, 1891 | C.F. Leopold | Saw set | saw sets | |
| 497,356 | May 16, 1893 | G.S. Strong | Electric-car truck | motor vehicles | |
| 497,357 | May 16, 1893 | G.S. Strong | Device for supporting crank-shafts | steam engines | |
| 505,541 | Sep. 26, 1893 | G.S. Strong | Forging and bending die | electrical devices | |
| 505,542 | Sep. 26, 1893 | G.S. Strong | Boiler | stationary boilers | |
| 572,150 | Dec. 01, 1896 | H. Bilgram | Cigarette-machine | tobacco machinery | |