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发明名称
Valve construction
摘要
申请公布号
US2237554(A)
申请公布日期
1941.04.08
申请号
US19380217422
申请日期
1938.07.05
申请人
GROVE MARVIN H
发明人
GROVE MARVIN H.
分类号
F16K25/04
主分类号
F16K25/04
代理机构
代理人
主权项
地址
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