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经营范围
发明名称
Improvements in arched furnace roofs and bricks therefor
摘要
申请公布号
GB681343(A)
申请公布日期
1952.10.22
申请号
GB19480014040
申请日期
1948.05.25
申请人
NORMAN EDWIN SMITH
发明人
分类号
F27D1/02
主分类号
F27D1/02
代理机构
代理人
主权项
地址
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