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发明名称
摘要
申请公布号
JPS6127345(B2)
申请公布日期
1986.06.25
申请号
JP19770079281
申请日期
1977.07.02
申请人
NGK INSULATORS LTD
发明人
OGAWA YUTAKA;KOMATSU YOSHIRO
分类号
C04B33/02;B28C1/00;B28C1/14;C04B33/04
主分类号
C04B33/02
代理机构
代理人
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