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发明名称
摘要
申请公布号
JPS643828(B2)
申请公布日期
1989.01.23
申请号
JP19830206707
申请日期
1983.11.02
申请人
SUMITOMO SPEC METALS
发明人
KAGEYAMA KEISUKE
分类号
C04B35/46;C04B35/04;C04B35/053;G11B5/127;G11B5/60
主分类号
C04B35/46
代理机构
代理人
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