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发明名称
IMPROVEMENTS RELATING TO SCANDIUM &C METALLIC COMPOUNDS
摘要
申请公布号
GB8726680(D0)
申请公布日期
1988.02.17
申请号
GB19870026680
申请日期
1987.11.13
申请人
PLESSEY CO PLC
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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