FR681019A - Dispositif à fonctionnement automatique pour la fabrication d'étampes, de matrices, de poinçons, de plaques de coupe ou de pièces équivalentes
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Dispositif à fonctionnement automatique pour la fabrication d'étampes, de matrices, de poinçons, de plaques de coupe ou de pièces équivalentes
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B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23C—MILLING
B23C3/00—Milling particular work; Special milling operations; Machines therefor
B23C3/16—Working surfaces curved in two directions
B23C3/20—Working surfaces curved in two directions for shaping dies
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FR681019D1929-08-301929-08-30Dispositif à fonctionnement automatique pour la fabrication d'étampes, de matrices, de poinçons, de plaques de coupe ou de pièces équivalentes
ExpiredFR681019A
(fr)