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经营范围
发明名称
SOUND TRANSDUCER
摘要
申请公布号
JPS5387201(A)
申请公布日期
1978.08.01
申请号
JP19770001772
申请日期
1977.01.10
申请人
KEIO GIKEN KOGYO KK
发明人
NAKAMURA TOSHIROU
分类号
G10H1/043;G10K11/00
主分类号
G10H1/043
代理机构
代理人
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