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发明名称
Electric system for indicating the occurrence of a pair of signals
摘要
申请公布号
US2679037(A)
申请公布日期
1954.05.18
申请号
US19530330564
申请日期
1953.01.09
申请人
EDGERTON, GERMESHAUSEN AND GRIER, INC.
发明人
O'KEEFE BERNARD J.
分类号
H03K17/54
主分类号
H03K17/54
代理机构
代理人
主权项
地址
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