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发明名称
TELEPHONE NUMBER RECORDING SYSTEM
摘要
申请公布号
CA625953(A)
申请公布日期
1961.08.22
申请号
CAD625953
申请日期
申请人
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人
GEORGE T. BAKER
分类号
主分类号
代理机构
代理人
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