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发明名称
Dispositif pour le soudage de tubes à partir d'un ruban métallique enroulé en hélice
摘要
申请公布号
FR76179(E)
申请公布日期
1961.09.22
申请号
FR19590803120
申请日期
1959.08.19
申请人
HOESCH WERKE AKTIENGESELLSCHAFT
发明人
分类号
B21C37/12;B23K28/02
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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