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发明名称
VALVE SEAT MECHANISM
摘要
申请公布号
CA2021962(A1)
申请公布日期
1991.02.19
申请号
CA19902021962
申请日期
1990.07.25
申请人
COOPER INDUSTRIES, INC.
发明人
HAYNES, BRIAN
分类号
F16K3/02
主分类号
F16K3/02
代理机构
代理人
主权项
地址
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