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经营范围
发明名称
Concrete flume structure and method of building same
摘要
申请公布号
US1856589(A)
申请公布日期
1932.05.03
申请号
US19310538072
申请日期
1931.05.18
申请人
PETERSON OTTO W;HECTOR KEESLING;KURTZ PLUNKETT I
发明人
PETERSON OTTO W.;KEESLING HECTOR;KURTZ PLUNKETT I.
分类号
E02B9/04
主分类号
E02B9/04
代理机构
代理人
主权项
地址
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