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Publication of BE584877ApublicationCriticalpatent/BE584877A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
B21H3/00—Making helical bodies or bodies having parts of helical shape
B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
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Engineering & Computer Science
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Mechanical Engineering
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BE584877A1958-12-191959-11-20Perfectionnements à la fabrication des goujons.
BE584877A
(fr)