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| All Patents in class 474/242 | |||||
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| Number | Date | Patentee | Title | Type | |
| 581,770 | May 04, 1897 | M.O. Reeves | Belt | industrial machine pulleys and belt drive mechanisms | |
| 1,898,035 | Feb. 21, 1933 | J.K. Diamond | Link belt | belts, belt lacing and belt lacers | |