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发明名称
Shut-off valve
摘要
申请公布号
US2970609(A)
申请公布日期
1961.02.07
申请号
US19580707431
申请日期
1958.01.07
申请人
THOMPSON RAMO WOOLDRIDGE INC.
发明人
BEREMAND DONALD G.
分类号
G05D7/01
主分类号
G05D7/01
代理机构
代理人
主权项
地址
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