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发明名称
Hydraulic valve operating system
摘要
申请公布号
US2595775(A)
申请公布日期
1952.05.06
申请号
US19470763820
申请日期
1947.07.26
申请人
DE WRANGELL SERGE
发明人
WRANGELL SERGE DE
分类号
F01L1/04;F01L1/30;F01L3/10;F01L9/02
主分类号
F01L1/04
代理机构
代理人
主权项
地址
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