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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
B24B27/00—Other grinding machines or devices
B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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FR536191D1921-05-111921-05-11Perfectionnements aux machines à meuler à poste double
ExpiredFR536191A
(fr)