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전기 음향 변환기
摘要
내용 없음
申请公布号
KR830008622(A)
申请公布日期
1983.12.10
申请号
KR19810004146
申请日期
1981.10.29
申请人
发明人
分类号
H04R1/10;H04R9/10
主分类号
H04R1/10
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代理人
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