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发明名称
Hydraulic control valve
摘要
申请公布号
US2331790(A)
申请公布日期
1943.10.12
申请号
US19410380509
申请日期
1941.02.25
申请人
NICHOLS JR HERBERT L
发明人
JR. HERBERT L. NICHOLS,
分类号
F15B13/06
主分类号
F15B13/06
代理机构
代理人
主权项
地址
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