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经营范围
发明名称
ELECTROACOUSTIC TRANSDUCER
摘要
申请公布号
JPS57198000(A)
申请公布日期
1982.12.04
申请号
JP19810205043
申请日期
1981.12.18
申请人
YOKOGAWA HIYUURETSUTO PATSUKAADO KK
发明人
JIEI FUREMINGU DEIASU
分类号
H04R17/00;A61B8/00;B06B1/06
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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