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| Patents for Lewis C. Parker | |||||
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| Picture | Number | Date | Patentee | Title | |
| 269,813 | Dec. 26, 1882 | L.C. Parker | Gas Engine | ||
| RE10,290 | Feb. 20, 1883 | L.C. Parker | Gas Engine | ||
| 287,855 | Nov. 06, 1883 | L.C. Parker | Electric Igniting Device for Gas Engines | ||
| 308,572 | Nov. 25, 1884 | B. Parker | Gas Engine | ||
| 401,204 | Apr. 09, 1889 | B. Parker, L.C. Parker | Igniting Apparatus for Gas Engines | ||
| 403,367 | May 14, 1889 | B. Parker, L.C. Parker | Gas or Gasoline Engine | ||
| 405,795 | Jun. 25, 1889 | B. Parker, L.C. Parker | Gas or Hydrocarbon Vapor Engine | ||