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发明名称
Perfectionnements aux conduites et aux procédés de fabrication desdites conduites
摘要
申请公布号
FR780368(A)
申请公布日期
1935.04.25
申请号
FRD780368
申请日期
1934.10.18
申请人
THE RIC-WIL COMPANY
发明人
分类号
F16L59/06;F16L59/14
主分类号
F16L59/06
代理机构
代理人
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