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发明名称
ACOUSTIC APPARATUS
摘要
申请公布号
JPH04221490(A)
申请公布日期
1992.08.11
申请号
JP19900405152
申请日期
1990.12.21
申请人
SONY CORP
发明人
SHIRAISHI TETSUYA
分类号
G11B33/10;H03G1/00
主分类号
G11B33/10
代理机构
代理人
主权项
地址
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