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发明名称
CIRCUIT FOR DRIVING PROPORTIONAL VALVE
摘要
申请公布号
KR1019910009238(B1)
申请公布日期
1991.11.07
申请号
KR1019890008488
申请日期
1989.06.20
申请人
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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