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发明名称
ELECTRO-ACOUSTIC TRANSDUCERS
摘要
申请公布号
EP0143383(A3)
申请公布日期
1985.07.17
申请号
EP19840113587
申请日期
1981.10.27
申请人
SONY CORPORATION
发明人
YOKOYAMA, YOSHIHIRO C/O PATENT DIVISION;WATANABE, SHINGO C/O PATENT DIVISION;NAGENO, KOJI C/O PATENT DIVISION
分类号
H04R1/10;H04R9/10;(IPC1-7):H04R1/10;H04R1/22
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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