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| All Patents in class 192/48.92 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,253,476 | May 31, 1966 | E. Olah | Variable speed drill | handheld power drills | |
| 3,621,730 | Nov. 23, 1971 | G.N. Jennings | Washing Machine with Dual Speed Cycle Control Means | washing machines | |