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经营范围
发明名称
OBSERVATION WINDOW FOR FURNACE
摘要
申请公布号
JPS5553693(A)
申请公布日期
1980.04.19
申请号
JP19780128067
申请日期
1978.10.18
申请人
HITACHI METALS LTD
发明人
TSUGE JIYUNJI
分类号
F23M11/04;F27D21/02
主分类号
F23M11/04
代理机构
代理人
主权项
地址
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