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经营范围
发明名称
ZONE REFINING
摘要
申请公布号
JPS52143903(A)
申请公布日期
1977.11.30
申请号
JP19760060011
申请日期
1976.05.26
申请人
HITACHI LTD
发明人
TAKAHASHI RIYOUKICHI;MINAGAWA SHIGEKAZU
分类号
C30B13/00;C30B29/12
主分类号
C30B13/00
代理机构
代理人
主权项
地址
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