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US4795295A Rupturable can member as well as method and apparatus for its production 失效
可破坏的罐头成员以及其生产的方法和设备

Rupturable can member as well as method and apparatus for its production
摘要:
A rupturable can member (10) of sheet metal has a pair of scorings (16) which define a tearing strip (18) laterally. Welded onto the tearing strip (18) is a tongue (20) which has a thickened portion (24) at its welded-on end (22). This thickened portion is formed by a margin folded back towards the other free end (26) of the tongue (20).
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