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All Patents in class 73/548 | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 10,559 | Feb. 21, 1854 | R. Porter | Improvement in machinery for making cordage | |
296,341 | Apr. 08, 1884 | H.S. Maxim | Electrical Igniting Device for Gas Engines | ||
![]() | 784,818 | Mar. 14, 1905 | C.W. Weiss | Internal Combustion Engine |