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发明名称
공중전화망을 이용한 경보방송장치
摘要
내용 없음
申请公布号
KR860002070(A)
申请公布日期
1986.03.26
申请号
KR19840004652
申请日期
1984.08.03
申请人
null, null
发明人
윤원영
分类号
主分类号
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代理人
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