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| Patents for Charles Hartless Usher | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,027,575 | May 28, 1912 | C.H. Usher | Stop-motion for planers and the like | industrial machine pulleys and belt drive mechanisms | |
| CA-140,867 | Jun. 04, 1912 | C.H. Usher | Planer mechanism | metal planer accessories | |
| 1,088,852 | Mar. 03, 1914 | C.H. Usher | Planer-stop mechanism | metal planer accessories | |
| CA-154,575 | Mar. 24, 1914 | C.H. Usher | Planer stop mechanism | metal planer accessories | |
| 1,606,542 | Nov. 09, 1926 | C.H. Usher | Safety stop | industrial machine pulleys and belt drive mechanisms | |
| 1,606,543 | Nov. 09, 1926 | C.H. Usher | Tire-rim tool | tire repair tools | |