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经营范围
发明名称
Improvements in or relating to hydraulic control valves
摘要
申请公布号
GB503347(A)
申请公布日期
1939.04.05
申请号
GB19370028394
申请日期
1937.10.19
申请人
VICKERS INCORPORATED
发明人
分类号
F16K31/06
主分类号
F16K31/06
代理机构
代理人
主权项
地址
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