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发明名称
Telephone sounder
摘要
申请公布号
GB2082018(A)
申请公布日期
1982.02.24
申请号
GB19800025123
申请日期
1980.07.31
申请人
STANDARD TELEPHONES & CABLES LTD
发明人
分类号
G10K9/18;H04R1/22;H04R17/10;(IPC1-7):H04R17/10
主分类号
G10K9/18
代理机构
代理人
主权项
地址
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