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| All Patents in class 123/572 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,411,343 | Apr. 04, 1922 | W.W. Gore | Internal Combustion Engine | gas and gasoline engines | |
| 1,922,640 | Aug. 15, 1933 | A. Rosner | Air Induction Means for Internal Combustion Engines | internal combustion engines | |