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发明名称
Telephonic device for domestic and like purposes
摘要
申请公布号
GB389670(A)
申请公布日期
1933.03.23
申请号
GB19320012331
申请日期
1932.04.29
申请人
NOEL CHARLES HYPHER
发明人
分类号
H04M1/02;H04M9/00
主分类号
H04M1/02
代理机构
代理人
主权项
地址
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