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| All Patents in class 29/463 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,940,455 | Dec. 19, 1933 | A.E. Kilpela | Gear Retaining Means | metalworking machine gearing | |
| 2,166,165 | Jul. 18, 1939 | B.A. Linderman | Fluid operated pressure transmission device | vehicle brakes | |