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| All Patents in class 200/61.58R | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,751,781 | Mar. 25, 1930 | T.C. Weiss | Motor driven tools switch | handheld power drills | |
| 2,266,975 | Dec. 23, 1941 | W.S. Landon | Control Device | flow controls | |
| 2,428,751 | Oct. 07, 1947 | A.K. Foulds | Valve and Switch Unit | flow controls | |
| 2,841,926 | Jul. 08, 1958 | W.A. Lebus | Knife Sharpener Casing | sharpening apparatus | |
| 3,982,085 | Sep. 21, 1976 | J.H. Cox | Stock Sensing Device | machine tool controls | |