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经营范围
发明名称
a checking valve
摘要
申请公布号
KR200457445(Y1)
申请公布日期
2011.12.20
申请号
KR20090001679U
申请日期
2009.02.16
申请人
发明人
分类号
F16K5/06;F16K27/06;F16K37/00
主分类号
F16K5/06
代理机构
代理人
主权项
地址
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