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| Patents for John Roehm | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 555,717 | Mar. 03, 1896 | E.E. Euchenhofer, C.J. Weinman | Gas-engine | |
 | 941,508 | Nov. 30, 1909 | E.E. Euchenhofer | Cushion-tire for vehicles | |