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| All Patents in class 92/103R | |||||
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| Number | Date | Patentee | Title | Type | |
| 177,745 | May 23, 1876 | R.H. Plass | Improvement in gas-governors | ||
| 2,306,768 | Dec. 29, 1942 | D.D. Wile | Control Device | refrigeration apparatus | |
| 2,766,711 | Oct. 16, 1956 | K.P. Martin, L.A. Dever | Press | hydraulic metalworking presses | |