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发明名称
ELECTRONIC TELEPHONE SYSTEM
摘要
申请公布号
CA657478(A)
申请公布日期
1963.02.12
申请号
CAD657478
申请日期
申请人
AUTOMATIC ELECTRIC LABORATORIES
发明人
ALFRED H. FAULKNER
分类号
主分类号
代理机构
代理人
主权项
地址
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