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经营范围
发明名称
ELEKTROSTATISCHE LUIDSPREKER.
摘要
申请公布号
NL7908511(A)
申请公布日期
1980.05.30
申请号
NL19790008511
申请日期
1979.11.22
申请人
SONY CORPORATION (SONY KABUSHIKIKAISHA) TE TOKIO.
发明人
分类号
H04R19/00;H04R19/02;(IPC1-7):H04R19/02
主分类号
H04R19/00
代理机构
代理人
主权项
地址
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