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经营范围
发明名称
Calcium Silicate Phosphor
摘要
申请公布号
GB1198250(A)
申请公布日期
1970.07.08
申请号
GB19690022640
申请日期
1969.05.02
申请人
W. R. GRACE & CO.
发明人
分类号
C09K11/66
主分类号
C09K11/66
代理机构
代理人
主权项
地址
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