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| All Patents in class 123/296 | |||||
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| Number | Date | Patentee | Title | Type | |
| 532,100 | Jan. 08, 1895 | J. Robison | Vaporizing and Ignition Device | carburetors | |
| 605,583 | Jun. 14, 1898 | R.L. Merritt | Internal Combustion Engine | internal combustion engines | |