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B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
B24B41/00—Component parts such as frames, beds, carriages, headstocks
B24B41/002—Grinding heads
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FR568136D1922-09-281922-09-28
Device for internal grinding of cylindrical surfaces
ExpiredFR568136A
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