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| All Patents in class 123/73CB | |||||
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| Picture | Number | Date | Patentee | Title | |
| 563,670 | Jul. 07, 1896 | F.S. Mead | Gas, Oil or Vapor Engine | ||
 | 592,034 | Oct. 19, 1897 | C.W. Weiss | Explosive Engine | |
 | 792,300 | Jun. 13, 1905 | C.W. Weiss | Internal Combustion Engine | |