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| All Patents in class 261/105 | |||||
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| Number | Date | Patentee | Title | Type | |
| 602,556 | Apr. 19, 1898 | T.M. Doyle | Gas or Gasolene Engine | gas and gasoline engines | |
| 3,512,761 | May 19, 1970 | J.F. O'Regan, B.A. Lundberg, W.J. Mussoni | Hydraulically-powered foam fire suppression system | ||