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发明名称
Safety valve
摘要
申请公布号
GB2147391(A)
申请公布日期
1985.05.09
申请号
GB19840023649
申请日期
1984.09.19
申请人
* DRESSER INDUSTRIES INC
发明人
RICHARD DAVID * WALSH
分类号
F16K17/04;F16K17/08;F16K17/12;(IPC1-7):F16K17/02
主分类号
F16K17/04
代理机构
代理人
主权项
地址
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