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HELICOTUBE PROCEDES FAVARD
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HELICOTUBE PROCEDES FAVARD
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Application filed by HELICOTUBE PROCEDES FAVARDfiledCriticalHELICOTUBE PROCEDES FAVARD
Priority to FR992621ApriorityCriticalpatent/FR87804E/fr
Application grantedgrantedCritical
Publication of FR87804EpublicationCriticalpatent/FR87804E/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
B21C37/12—Making tubes or metal hoses with helically arranged seams
FR992621A1964-10-241964-10-24Procédé et dispositif pour la fabrication de tubes formés par enroulement en hélice d'une bande métallique
ExpiredFR87804E
(fr)