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发明名称
RECORD STYLUS WITH GRAPHITE ELECTRODE
摘要
申请公布号
KR1019840002336(B1)
申请公布日期
1984.12.19
申请号
KR1019810001828
申请日期
1981.05.25
申请人
发明人
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主分类号
代理机构
代理人
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