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发明名称
NEEDLE-CRYSTALLINE ALUMINUM OXIDE AND ITS PREPARATION
摘要
申请公布号
JPH03215400(A)
申请公布日期
1991.09.20
申请号
JP19900296502
申请日期
1990.10.31
申请人
KYOCERA CORP
发明人
HAYASHI KATSURA;SAKAGAMI SHIYOUJI;EMURA HIDEO
分类号
C30B29/62
主分类号
C30B29/62
代理机构
代理人
主权项
地址
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