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发明名称
Mode d'assemblage de tubes co-axiaux
摘要
申请公布号
FR925895(A)
申请公布日期
1947.09.16
申请号
FRD925895
申请日期
1946.04.01
申请人
COMPAGNIE DES SURCHAUFFEURS
发明人
HUET ANDRE
分类号
B21C37/15;B21D39/04;B23K5/00
主分类号
B21C37/15
代理机构
代理人
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地址
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