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| Patents for A. J. Roeffs | |||||
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| Number | Date | Patentee | Title | Type | |
| 357,238 | Feb. 08, 1887 | C.C. Smalley | Means for securing pulleys to shafts | industrial machine pulleys and belt drive mechanisms | |
| 357,239 | Feb. 08, 1887 | C.C. Smalley | Tread-power governor | ||