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经营范围
发明名称
An improved high pressure hydraulic selector valve
摘要
申请公布号
GB628111(A)
申请公布日期
1949.08.23
申请号
GB19450035328
申请日期
1945.12.31
申请人
LIONEL STERN
发明人
分类号
F15B13/06;F16K11/074
主分类号
F15B13/06
代理机构
代理人
主权项
地址
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