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发明名称
Pipe coupling
摘要
申请公布号
US2270296(A)
申请公布日期
1942.01.20
申请号
US19400333658
申请日期
1940.05.06
申请人
HENNING RALPH B
发明人
HENNING RALPH B.
分类号
F16L23/12
主分类号
F16L23/12
代理机构
代理人
主权项
地址
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