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| All Patents in class 464/151 | |||||
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| Number | Date | Patentee | Title | Type | |
| 117,706 | Aug. 01, 1871 | T. Weaver | Spherical Gears | industrial machine gearing | |
| 433,304 | Jul. 29, 1890 | A.D. Pentz | Flexible Coupling | industrial machine shaft couplings | |