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| Patents for Jennie M. Caldwell | |||||
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| Number | Date | Patentee | Title | Type | |
| 335,129 | Feb. 02, 1886 | B. Holmes, E. Holmes | Sugar Cane Planter | crop planters | |
| 344,427 | Jun. 29, 1886 | C.G. Wanenmacher | Wrench and Lock Combined | wrench combination tools | |
| 347,299 | Aug. 10, 1886 | E.M. Jewett | Box-forming machine | box making machines | |
| 509,435 | Nov. 28, 1893 | E. Holmes, E.F. Beugler, B. Holmes | Planing Machine | wood planers | |
| 512,704 | Jan. 16, 1894 | E. Holmes, B. Holmes | Device for Directing Hoops on Barrels | barrel making machines | |