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| All Patents in class 403/352 | |||||
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| Number | Date | Patentee | Title | Type | |
| 64,292 | Apr. 30, 1867 | J.W. Douglas | Improvement in hose-couplings | household hand pumps | |
| 591,558 | Oct. 12, 1897 | A.G. Mather | Locking Device for Shafts | industrial machine shaft couplings | |