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经营范围
发明名称
Improvements relating to stiffening fibre and like building boards for ceilings and roof linings
摘要
申请公布号
GB780671(A)
申请公布日期
1957.08.07
申请号
GB19550001590
申请日期
1955.01.19
申请人
HENRY MCASKILL HAY
发明人
分类号
E04C2/18
主分类号
E04C2/18
代理机构
代理人
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