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| Patents for Charles F. Geyer | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 263,991 | Sep. 05, 1882 | C.A. Svensson | Machine for bending rings | |
 | 275,913 | Apr. 17, 1883 | J.W. Holmes | Solar Theodite | |
 | 302,047 | Jul. 15, 1884 | H.B. Stevens | Cane Mill | |
 | 312,530 | Feb. 17, 1885 | R. Triller | Tenoning and boring machine | |