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发明名称
ELECTROACOUSTIC CONVERTER
摘要
申请公布号
JPS58189000(U)
申请公布日期
1983.12.15
申请号
JP19820086040U
申请日期
1982.06.11
申请人
发明人
分类号
H05B33/04;G09F9/00;G09F13/22;(IPC1-7):H05B33/04
主分类号
H05B33/04
代理机构
代理人
主权项
地址
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