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发明名称
ROTATING SPOOL SERVO VALVE
摘要
申请公布号
CA495563(A)
申请公布日期
1953.08.25
申请号
CAD495563
申请日期
申请人
NORTHROP AIRCRAFT
发明人
WARDE L. PARKER
分类号
主分类号
代理机构
代理人
主权项
地址
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