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All Patents in class 192/45.005 | |||||
Number | Date | Patentee | Title | Type | |
677,276 | Jun. 25, 1901 | W. Robertson | Grinding-machine | grinders | |
1,496,577 | Jun. 03, 1924 | D.C. Klausmeyer | Discriminating Slip Device | metalworking machine mechanisms |