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| All Patents in class 476/65 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,827,968 | Oct. 20, 1931 | W.L. Bryant | Wheelhead and the like | grinders | |
| 2,814,206 | Nov. 26, 1957 | J.F. Kopczynski | Ultra high speed bearings | metalworking machine bearings | |