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经营范围
发明名称
Improvements in buildings comprising brickwork walls
摘要
申请公布号
GB504537(A)
申请公布日期
1939.04.26
申请号
GB19380027366
申请日期
1938.09.20
申请人
KARL SCHAEFER
发明人
分类号
E04B1/20;E04B2/68
主分类号
E04B1/20
代理机构
代理人
主权项
地址
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