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发明名称
Improvements in or relating to valve devices
摘要
申请公布号
GB685925(A)
申请公布日期
1953.01.14
申请号
GB19490025850
申请日期
1949.10.07
申请人
ELECTRO-HYDRAULICS LIMITED;WILLIAM ARTHUR MALLINSON
发明人
分类号
F15B13/04
主分类号
F15B13/04
代理机构
代理人
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地址
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