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发明名称
Procédé de fabrication d'éléments de construction multitubulaires et machine pour sa mise en oeuvre
摘要
申请公布号
FR966636(A)
申请公布日期
1950.10.13
申请号
FRD966636
申请日期
1948.05.22
申请人
发明人
SPRAUER LUCIEN
分类号
B28B1/44
主分类号
B28B1/44
代理机构
代理人
主权项
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