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发明名称
Perfectionnements apportés aux raccords tubulaires et aux éléments de compression logés dans ceux-ci
摘要
申请公布号
FR70059(E)
申请公布日期
1959.02.02
申请号
FRD70059
申请日期
1956.10.03
申请人
发明人
GUILLOU FRANCOIS
分类号
B21C37/20
主分类号
B21C37/20
代理机构
代理人
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