FR757581A - Procédé et dispositif pour produire une ligne dite de faiblesse dans les couvercles des boîtes de conserves alimentaires ou analogues
- Google Patents
Procédé et dispositif pour produire une ligne dite de faiblesse dans les couvercles des boîtes de conserves alimentaires ou analogues
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TRANSITORIA AB
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TRANSITORIA AB
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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
B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs
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Mechanical Engineering
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FR757581D1932-02-171933-02-17Procédé et dispositif pour produire une ligne dite de faiblesse dans les couvercles des boîtes de conserves alimentaires ou analogues
ExpiredFR757581A
(fr)