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发明名称
TELEPHONE SYSTEM
摘要
申请公布号
CA426425(A)
申请公布日期
1945.03.27
申请号
CAD426425
申请日期
申请人
THE WESTERN ELECTRIC COMPANY;BELL TELEPHONE LABORATORIES
发明人
JAMES BYRON NEWSON;RALPH EMERSON HERSEY;REYMOND EVERETT COLLIS
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主分类号
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