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发明名称
Expansible sleeve type valve
摘要
申请公布号
US2621889(A)
申请公布日期
1952.12.16
申请号
US19470750004
申请日期
1947.05.23
申请人
GROVE REGULATOR COMPANY
发明人
ANNIN DOUGLAS H.
分类号
F16K15/14
主分类号
F16K15/14
代理机构
代理人
主权项
地址
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