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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
B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
B24B19/20—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding dies
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FR335312D1903-09-151903-09-15Perfectionnements dans les machines pour meuler ou tailler les matrices
ExpiredFR335312A
(fr)