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经营范围
发明名称
SILICA,BORON NITRIDE,ALUMINUM NITRIDE,ALUMINA COMPOSITE,ARTICLE AND METHOD OF MAKING SAME
摘要
申请公布号
GB8918921(D0)
申请公布日期
1989.09.27
申请号
GB19890018921
申请日期
1989.08.18
申请人
GENERAL ELECTRIC COMPANY
发明人
分类号
C04B35/597;H01Q1/28;H01Q1/42
主分类号
C04B35/597
代理机构
代理人
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