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经营范围
发明名称
Perfectionnements à la fabrication des tuyaux métalliques malléables
摘要
申请公布号
FR675261(A)
申请公布日期
1930.02.07
申请号
FRD675261
申请日期
1929.05.16
申请人
发明人
WEIR EDWARD
分类号
B21B17/14
主分类号
B21B17/14
代理机构
代理人
主权项
地址
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