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发明名称
AUTOMATIC TELEPHONE SYSTEM
摘要
申请公布号
CA461318(A)
申请公布日期
1949.11.22
申请号
CAD461318
申请日期
申请人
BELL TELEPHONE LABORATORIES;WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
MARTIN E. MALONEY;FRANK F. SHIPLEY
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主分类号
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