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发明名称
摘要
申请公布号
JPS6134043(B2)
申请公布日期
1986.08.05
申请号
JP19770146024
申请日期
1977.12.07
申请人
HITACHI LTD
发明人
OOKOCHI ISAO;IZUMI KENKICHI
分类号
C02F1/20;F22D1/28;F22D1/30
主分类号
C02F1/20
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