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All Patents in class 451/67 | |||||
Number | Date | Patentee | Title | Type | |
2,585,990 | Feb. 19, 1952 | W.G. Baldenhofer | Method of grinding intricate contours | profile and contour grinders | |
5,081,794 | Jan. 21, 1992 | D.E. Haney | Sander with orbiting platen and abrasive | sanding machines |