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发明名称
CALLING DEVICE INDENTIFICATION CAM ASSEMBLY
摘要
申请公布号
CA569431(A)
申请公布日期
1959.01.20
申请号
CAD569431
申请日期
申请人
GENERAL TELEPHONE LABORATORIES
发明人
JOSEPH M. HARTZ
分类号
主分类号
代理机构
代理人
主权项
地址
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