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AUGUSTE-JOSEPH BOUCHAYER
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AUGUSTE-JOSEPH BOUCHAYER
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Application filed by AUGUSTE-JOSEPH BOUCHAYERfiledCriticalAUGUSTE-JOSEPH BOUCHAYER
Application grantedgrantedCritical
Publication of FR394743ApublicationCriticalpatent/FR394743A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR394743D1907-12-051907-12-05Procédé de fabrication des tuyaux en tole d'acier ou de fer
ExpiredFR394743A
(fr)