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| All Patents in class 411/295 | |||||
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| Number | Date | Patentee | Title | Type | |
| 215,836 | May 27, 1879 | G.W. Rhines | Improvement in Lock-Nuts | auxiliary wrenches | |
| 1,940,455 | Dec. 19, 1933 | A.E. Kilpela | Gear Retaining Means | metalworking machine gearing | |