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发明名称
Pipe line stopper
摘要
申请公布号
US2655339(A)
申请公布日期
1953.10.13
申请号
US19510236108
申请日期
1951.07.11
申请人
MUELLER CO.
发明人
SMITH JOHN J.
分类号
F16K3/22;F16L55/124
主分类号
F16K3/22
代理机构
代理人
主权项
地址
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