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经营范围
发明名称
HEARTH ROLL SUPPRESSING HEAT CROWN
摘要
申请公布号
JPH02301520(A)
申请公布日期
1990.12.13
申请号
JP19890120646
申请日期
1989.05.15
申请人
SUMITOMO METAL IND LTD
发明人
ISAKA KAZUSANE;MASUI TAKESHI
分类号
C21D1/00;C21D9/56
主分类号
C21D1/00
代理机构
代理人
主权项
地址
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