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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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FR798004D1935-11-201935-11-20Machine à <gréser>, surfacer et polir les carreaux de ciment, mosaïques, granites, etc.
ExpiredFR798004A
(fr)