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发明名称
IMPROVEMENTS IN OR RELATING TO TELEPHONE TRANSDUCERS
摘要
申请公布号
IE53436(B1)
申请公布日期
1988.11.09
申请号
IE19820002150
申请日期
1982.09.03
申请人
A.P. BESSON LIMITED
发明人
分类号
H04R13/00;H04R11/00;(IPC1-7):H04R11/00;H04R31/00
主分类号
H04R13/00
代理机构
代理人
主权项
地址
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