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发明名称
NON-RETURN VALVE
摘要
申请公布号
HK1144646(A2)
申请公布日期
2011.02.25
申请号
HK20100109645
申请日期
2010.10.12
申请人
EVERGREEN INTERNATIONAL DEVELOPMENT LTD.
发明人
LO KING MAN
分类号
E03C
主分类号
E03C
代理机构
代理人
主权项
地址
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