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发明名称
AUTOMATIC TELEPHONE SWITCH
摘要
申请公布号
CA411413(A)
申请公布日期
1943.03.30
申请号
CAD411413
申请日期
申请人
AUTOMATIC TELEPHONE AND ELECTRIC COMPANY LIMITED
发明人
CHARLES EDMUND BEALE;IDRIS TREVOR RICHARDS
分类号
主分类号
代理机构
代理人
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