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发明名称
Valve construction
摘要
申请公布号
US2287992(A)
申请公布日期
1942.06.30
申请号
US19390297855
申请日期
1939.10.04
申请人
GROVE MARVIN H
发明人
GROVE MARVIN H.
分类号
F16K1/32;G05D16/06
主分类号
F16K1/32
代理机构
代理人
主权项
地址
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