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发明名称
Signal failure indication and system control
摘要
申请公布号
US2982943(A)
申请公布日期
1961.05.02
申请号
US19560589298
申请日期
1956.06.04
申请人
DRESSER INDUSTRIES, INC.
发明人
ISAACSON WALTER P.;TEJADA-FLORES LUIS H.
分类号
G01V1/48;G01V13/00
主分类号
G01V1/48
代理机构
代理人
主权项
地址
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