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ARBEL FORGES DE DOUAI ETS
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ARBEL FORGES DE DOUAI ETS
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Application filed by ARBEL FORGES DE DOUAI ETSfiledCriticalARBEL FORGES DE DOUAI ETS
Application grantedgrantedCritical
Publication of FR556813ApublicationCriticalpatent/FR556813A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
B21C37/08—Making tubes with welded or soldered seams
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FR556813D1922-10-021922-10-02Nouveau procédé et appareil pour la fabrication des tubes métalliques
ExpiredFR556813A
(fr)