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| All Patents in class 200/19.13 | |||||
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| Number | Date | Patentee | Title | Type | |
| 816,062 | Mar. 27, 1906 | I.S. Barnett | Gas Engine | gas and gasoline engines | |
| 821,546 | May 22, 1906 | H.E. Smallbone | Multiple Cylinder Engine | axial internal combustion engines | |
| 2,591,353 | Apr. 01, 1952 | K.A. Harmon, G.A. Guernsey | Make-before-break double-pole switch | electric switches | |
| 2,848,569 | Aug. 19, 1958 | R.Y. Moss, S.H. Durbin | Automation control device | metalworking presses | |
| 2,859,290 | Nov. 04, 1958 | C.M. Grinage | Machine Tool Controller | ||