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| Patents for Myron Campbell | |||||
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| Number | Date | Patentee | Title | Type | |
| 384,871 | Jun. 19, 1888 | A.P. Sibley | Pulley | industrial machine pulleys and belt drive mechanisms | |
| 394,407 | Dec. 11, 1888 | G.O. Ware, A.P. Sibley | Bushing for split pulleys | industrial machine pulleys and belt drive mechanisms | |