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B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23F—MAKING GEARS OR TOOTHED RACKS
B23F3/00—Making gear teeth involving copying operations controlled by templates having a profile which matches that of the required tooth face or part thereof or a copy thereof to a different scale
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FR600422D1925-07-081925-07-08
Device for guiding and advancing the workpiece in grinding, milling, drilling machines and similar machine tools
ExpiredFR600422A
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