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发明名称
Improvements relating to the recording of messages on dictating machines
摘要
申请公布号
GB776264(A)
申请公布日期
1957.06.05
申请号
GB19520021682
申请日期
1952.08.28
申请人
UNILEVER LIMITED
发明人
LOGAN DAVID GERALD
分类号
H04M11/10
主分类号
H04M11/10
代理机构
代理人
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地址
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