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发明名称
Soft seat with metal insert for gate valves
摘要
申请公布号
US3085784(A)
申请公布日期
1963.04.16
申请号
US19600059338
申请日期
1960.09.29
申请人
PACIFIC VALVES, INC.
发明人
DUMM ROBERT P.
分类号
F16K3/12
主分类号
F16K3/12
代理机构
代理人
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地址
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