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发明名称
Improvements in or relating to walls, floors or ceilings
摘要
申请公布号
GB521371(A)
申请公布日期
1940.05.20
申请号
GB19380033413
申请日期
1938.11.17
申请人
ARTHUR GEORGE SHARPLES
发明人
分类号
E04B2/02;E04B2/14
主分类号
E04B2/02
代理机构
代理人
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地址
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