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发明名称
ELECTRICAL SIGNALLING SYSTEMS
摘要
申请公布号
CA606925(A)
申请公布日期
1960.10.18
申请号
CAD606925
申请日期
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
FREDERICK H. BRAY;RONALD G. KNIGHT
分类号
主分类号
代理机构
代理人
主权项
地址
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