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发明名称
Pièce à dilatation
摘要
申请公布号
FR709941(A)
申请公布日期
1931.08.14
申请号
FRD709941
申请日期
1931.01.24
申请人
发明人
ROMER REINHOLD
分类号
F16L51/02
主分类号
F16L51/02
代理机构
代理人
主权项
地址
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