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发明名称
TRANSMITTER-RECEIVER DEVICES FOR USE IN THE EAR
摘要
申请公布号
GB1500764(A)
申请公布日期
1978.02.08
申请号
GB19750023726
申请日期
1975.05.31
申请人
TANI O
发明人
分类号
H04M1/05;H04R1/08;H04R1/10;(IPC1-7):H04R1/10;H04M9/10
主分类号
H04M1/05
代理机构
代理人
主权项
地址
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