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发明名称
Stopper plug valve
摘要
申请公布号
US2913012(A)
申请公布日期
1959.11.17
申请号
US19570700372
申请日期
1957.12.03
申请人
WALTER B. MANN;CHARLES T. BASHMAN
发明人
MCCURLEY EDWARD B.
分类号
F16L55/10;F16L55/105
主分类号
F16L55/10
代理机构
代理人
主权项
地址
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