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发明名称
Procédé de fabrication d'une paroi étanche au moyen de tronçons de tube parallèles et paroi étanche obtenue au moyen de ce procédé
摘要
申请公布号
CH382188(A)
申请公布日期
1964.09.30
申请号
CH19580056115
申请日期
1958.02.20
申请人
HUET,ANDRE
发明人
HUET,ANDRE
分类号
B21C37/20;B21C37/28;B21C37/29;B21D53/06;F22B37/10;F22B37/12;F22B37/14;F22G3/00;F28F1/10;F28F1/12
主分类号
B21C37/20
代理机构
代理人
主权项
地址
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