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经营范围
发明名称
Perfectionnements aux poteaux tubulaires en acier
摘要
申请公布号
FR685839(A)
申请公布日期
1930.07.17
申请号
FRD685839
申请日期
1929.11.30
申请人
TAPER TUBE POLE CO
发明人
分类号
E04H12/08
主分类号
E04H12/08
代理机构
代理人
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