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发明名称
GATE VALVE
摘要
申请公布号
CA588482(A)
申请公布日期
1959.12.08
申请号
CAD588482
申请日期
申请人
T. MCAVITY AND SONS
发明人
FREDERICK W. BLANCHARD
分类号
主分类号
代理机构
代理人
主权项
地址
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