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发明名称
LEAD-FREE GLASS COMPOSITIONS OF HIGH X-RAY ABSORPTION
摘要
申请公布号
KR1019830002077(B1)
申请公布日期
1983.10.11
申请号
KR1019810000463
申请日期
1981.01.14
申请人
发明人
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主分类号
代理机构
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