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发明名称
CHECK VALVE
摘要
申请公布号
KR790000223(Y1)
申请公布日期
1979.03.19
申请号
KR19770004145U
申请日期
1977.06.28
申请人
KIM J J
发明人
KIM J J
分类号
主分类号
代理机构
代理人
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地址
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