发明名称 TUBFORMNINGSFOERFARANDE.
摘要 A laminate of non-ferrous metal foil and heat softenable material is folded to tubular form to juxtapose the margins and the margins are heat sealed by passing the tube through an inductance coil; the inductance field may be intensified by a ferrite bar located in a mandrel over which the tube is fed.
申请公布号 FI782916(A) 申请公布日期 1979.12.31
申请号 FI19780002916 申请日期 1978.09.25
申请人 AMERICAN CAN COMPANY 发明人 GILLESPIE, WILLIAM STANLEY;INGLIS, HAL LAWSON
分类号 B21C37/06;B21D51/36;B29C53/50;B29C65/00;B29C65/02;B29C65/78 主分类号 B21C37/06
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