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| Patents for Otto Richter | |||||
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| Number | Date | Patentee | Title | Type | |
| 308,112 | Nov. 18, 1884 | J.H. Vaile | Process of and apparatus for cooking oil-meal | agricultural | |
| 309,578 | Dec. 23, 1884 | A.G. Snyder | Machine for bending carriage-poles | carriage maker | |
| 309,579 | Dec. 23, 1884 | A.G. Snyder | Machine for bending shafts | carriage maker | |