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经营范围
发明名称
FLAPPER SERVO VALVE WITH FEEDBACK
摘要
申请公布号
US3537467(A)
申请公布日期
1970.11.03
申请号
USD3537467
申请日期
1968.08.12
申请人
SPERRY RAND CORP.
发明人
JOHN MARSHALL
分类号
F15B13/043;(IPC1-7):F16K11/10;F16K11/24
主分类号
F15B13/043
代理机构
代理人
主权项
地址
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