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发明名称
ELECTRO-ACOUSTIC ELEMENT
摘要
申请公布号
JPH04156499(A)
申请公布日期
1992.05.28
申请号
JP19900280990
申请日期
1990.10.19
申请人
OLYMPUS OPTICAL CO LTD
发明人
ADACHI HIDEO
分类号
H04R1/34;G02F1/335;G10K11/30
主分类号
H04R1/34
代理机构
代理人
主权项
地址
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