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经营范围
发明名称
ECHO-SUPPRESSING CIRCUIT
摘要
申请公布号
JPH1022880(A)
申请公布日期
1998.01.23
申请号
JP19960173247
申请日期
1996.07.03
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
IWATANI AKIHIKO
分类号
H04R3/00;H04B3/23;H04M1/60;H04R3/02;(IPC1-7):H04B3/23
主分类号
H04R3/00
代理机构
代理人
主权项
地址
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