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| All Patents in class 411/537 | |||||
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| Number | Date | Patentee | Title | Type | |
| 643,782 | Feb. 20, 1900 | J.R. Thame | Fiber Pulley | industrial machine pulleys and belt drive mechanisms | |
| 1,400,063 | Dec. 13, 1921 | T. Hinton | Tool Holder | drilling and boring tool holders | |
| 3,220,289 | Nov. 30, 1965 | S.E. Farekas | Intermediate Shaft Support Bearing | engine lathes | |