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| All Patents in class 474/49 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,092,098 | Mar. 31, 1914 | J.C. Fitzgerald | Pulley | industrial machine pulleys and belt drive mechanisms | |
| 1,559,375 | Oct. 27, 1925 | J.S. Reid | Chain Wheel | woodworking power transmission | |