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发明名称
Discharge valve apparatus
摘要
申请公布号
CZ9903744(A3)
申请公布日期
2001.02.14
申请号
CZ19990003744
申请日期
1998.04.21
申请人
DERWENT MACDEE LIMITED
发明人
FROST DOUGLAS ROBERT DAVID
分类号
E03D1/14;(IPC1-7):E03D1/14
主分类号
E03D1/14
代理机构
代理人
主权项
地址
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