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| All Patents in class 123/145A | |||||
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| Number | Date | Patentee | Title | Type | |
| 88,767 | Apr. 13, 1869 | J.B. Atwater | Motive Power | hot air engines | |
| 362,187 | May 03, 1887 | J.C. Beckfeld, A. Schmid | Gas Engine | gas and gasoline engines | |
| 626,394 | Jun. 06, 1899 | C.C. Riotte | Igniter for Gas Engines | ignition systems | |
| 1,388,969 | Aug. 30, 1921 | A. Peter | Protected Firing Mechanism for Internal Combustion Engines | ignition apparatus | |
| 1,417,766 | May 30, 1922 | A. Peter | Externally Heatable Ignition Plug | ignition systems | |