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发明名称
TELEPHONE SYSTEMS
摘要
申请公布号
CA641506(A)
申请公布日期
1962.05.22
申请号
CAD641506
申请日期
申请人
AUTOMATIC TELEPHONE AND ELECTRIC COMPANY LIMITED
发明人
JOHN F. GREENAWAY;ROBERT H. MILTON;KENNETH G. MARWING
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主分类号
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