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| All Patents in class 403/358 | |||||
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| Number | Date | Patentee | Title | Type | |
| 55,895 | Jun. 26, 1866 | C.T. Packer, E.E. Packer | Improvement in drill-couplings | shaft keys | |
| 296,317 | Apr. 08, 1884 | G. Dawe | Means of keying wheels, pulleys, &c., to shafting | shaft keys | |
| 368,744 | Aug. 23, 1887 | W.N. Woodruff | Shaft-key | shaft keys | |
| 1,566,849 | Dec. 22, 1925 | W.R. Fox | Coupling for flexible shafting | industrial machine shaft couplings | |
| 2,332,684 | Oct. 26, 1943 | J.B. Armitage | Adjusting and Locking Device | milling machines | |