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Publication of FR423978ApublicationCriticalpatent/FR423978A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D51/00—Making hollow objects
B21D51/16—Making hollow objects characterised by the use of the objects
B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
B21D51/30—Folding the circumferential seam
B21D51/32—Folding the circumferential seam by rolling
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Engineering & Computer Science
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Mechanical Engineering
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FR423978D1910-11-081910-11-08Machine à organes multiples pour le double agrafage des boites de conserves et autres boites analogues
ExpiredFR423978A
(fr)