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B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
B44C1/22—Removing surface-material, e.g. by engraving, by etching
FR25443D1920-08-131921-05-24Procédé pour la fabrication, au moyen de plaques de galalithe, d'objets décoratifs, et produit qui en résulte
ExpiredFR25443E
(fr)