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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
B24B41/04—Headstocks; Working-spindles; Features relating thereto
B24B41/047—Grinding heads for working on plane surfaces
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Engineering & Computer Science
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FR42632D1932-12-121932-12-12
Machine for polishing marble and similar materials
ExpiredFR42632E
(en)