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Patents for Oliver P. Dennis | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 648,122 | Apr. 24, 1900 | W.P. Davis | Electric Igniter for Explosive Engines | |
![]() | 652,470 | Jun. 26, 1900 | T.C. Menges, T. Cascaden, Jr. | Explosive Engine |