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发明名称
Reinforced concrete pipe
摘要
申请公布号
US2179629(A)
申请公布日期
1939.11.14
申请号
US19380190561
申请日期
1938.02.15
申请人
UNITED STATES PIPE AND FOUNDRY COMPANY
发明人
HERING EDWARD
分类号
F16L13/11;F16L25/00
主分类号
F16L13/11
代理机构
代理人
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地址
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