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经营范围
发明名称
Improvements in or relating to ceilings
摘要
申请公布号
GB741842(A)
申请公布日期
1955.12.14
申请号
GB19530011577
申请日期
1953.04.27
申请人
JOHN DALE LIMITED;IAN LOW SMART
发明人
分类号
E04B9/06;E04B9/26
主分类号
E04B9/06
代理机构
代理人
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地址
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