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发明名称
MANUFACTURING METHOD OF ARTIFICIAL INKSTONE
摘要
申请公布号
KR1019920005092(B1)
申请公布日期
1992.06.26
申请号
KR1019890018526
申请日期
1989.12.14
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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