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| Patents for Reuben H. Plass | |||||
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| Number | Date | Patentee | Title | Type | |
| 54,888 | May 22, 1866 | G.P. Ganster | Improvement in Wrenches | screw adjust wrenches | |
| 82,244 | Sep. 15, 1868 | J.T. Plass, R.H. Plass | Apparatus for carbureting air | carburetors | |
| 88,205 | Mar. 23, 1869 | R.H. Plass | Improvement in velocipedes | ||
| 177,745 | May 23, 1876 | R.H. Plass | Improvement in gas-governors | ||
| 570,952 | Nov. 10, 1896 | R.H. Plass | Self-propelling vehicle | motor vehicles | |