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发明名称
Speech device for telephonic apparatus
摘要
申请公布号
GB2304449(A)
申请公布日期
1997.03.19
申请号
GB19960017063
申请日期
1996.08.14
申请人
MARTIN TREVOR * WHEELER
发明人
MARTIN TREVOR * WHEELER
分类号
H01H13/84;H04M1/22;H04M1/247;H04M1/56;(IPC1-7):H04M1/56;G09B21/00
主分类号
H01H13/84
代理机构
代理人
主权项
地址
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