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发明名称
SERVO VALVE
摘要
申请公布号
GB9127190(D0)
申请公布日期
1992.02.19
申请号
GB19910027190
申请日期
1991.12.21
申请人
DOWTY BOULTON PAUL LTD
发明人
分类号
主分类号
代理机构
代理人
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地址
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