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发明名称
Improvements in or relating to telephone call-answering apparatus
摘要
申请公布号
GB847233(A)
申请公布日期
1960.09.07
申请号
GB19550024028
申请日期
1955.09.19
申请人
SPENCER LEIGH ALLWORTH;ALBERT VINCENT MURPHY
发明人
分类号
H04M1/65
主分类号
H04M1/65
代理机构
代理人
主权项
地址
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