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| Patents for C. F. Geyer | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 77,211 | Apr. 28, 1868 | E.T. Prindle | Improvement in Cutting Tools for Planing and Milling Machines | |
 | 410,161 | Sep. 03, 1889 | C. Hammelmann | Portable forge | |
 | 829,166 | Aug. 21, 1906 | C.W. Manzel | Lubricator | |
 | 832,265 | Oct. 02, 1906 | C.W. Manzel | Lubricating Device | |
 | 893,085 | Jul. 14, 1908 | L.R. Loughborough | Drafting Instrument | |
| 920,769 | May 04, 1909 | C.W. Manzel | Lubricator | ||
 | 924,767 | Jun. 15, 1909 | A. Gruitsch | Hacksaw Machine | |
| 1,003,189 | Sep. 12, 1911 | C.W. Manzel | Lubricator | ||
 | 1,069,186 | Aug. 05, 1913 | F.X. Rudler | Rustless Rule | |
 | 1,069,450 | Aug. 05, 1913 | C.W. Manzel | Force Feed Lubricator | |