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经营范围
发明名称
Improvements in or relating to roof construction elements
摘要
申请公布号
GB630576(A)
申请公布日期
1949.10.17
申请号
GB19470003062
申请日期
1947.01.31
申请人
RADIM MATOLIN
发明人
分类号
E04B7/20
主分类号
E04B7/20
代理机构
代理人
主权项
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