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B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
B28D1/20—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by planing, e.g. channelling by means of planing tools
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FR479422D1915-07-311915-07-31Procédé et appareil perfectionnés pour tailler la pierre
ExpiredFR479422A
(fr)