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发明名称
ECHO CANCELLER
摘要
申请公布号
JPH02174353(A)
申请公布日期
1990.07.05
申请号
JP19880329697
申请日期
1988.12.27
申请人
FUJITSU LTD
发明人
NAKAJO KAORU
分类号
H04M1/60;H04B3/23
主分类号
H04M1/60
代理机构
代理人
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