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发明名称
Pilot-operated relief valve
摘要
申请公布号
US2890714(A)
申请公布日期
1959.06.16
申请号
US19550492992
申请日期
1955.03.08
申请人
ANDERSON, GREENWOOD & COMPANY
发明人
GREENWOOD MARVIN H.;JR. WALTER C. FRANCIS,
分类号
G05D16/10
主分类号
G05D16/10
代理机构
代理人
主权项
地址
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