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发明名称
ELEKTROAKOUSTISCHE MEMBRAN UND VERFAHREN ZUR HERSTELLUNG.
摘要
申请公布号
DE68904582(D1)
申请公布日期
1993.03.11
申请号
DE19896004582
申请日期
1989.04.10
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., KADOMA, OSAKA, JP;RESEARCH DEVELOPMENT CORP. OF JAPAN, TOKIO/TOKYO, JP
发明人
MURAKAMI, MUTSUAKI, MACHIDA-SHI TOKYO, JP;YOSHIMURA, SUSUMU, YOKOHAMA, JP
分类号
H04R7/02;H04R31/00;(IPC1-7):C04B41/83
主分类号
H04R7/02
代理机构
代理人
主权项
地址
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