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经营范围
发明名称
Improvements in building blocks
摘要
申请公布号
GB619861(A)
申请公布日期
1949.03.16
申请号
GB19450035025
申请日期
1947.07.19
申请人
ARCHIBALD GRAHAM BROWN BLAIR;JAMES BLAIR
发明人
分类号
E04C1/40
主分类号
E04C1/40
代理机构
代理人
主权项
地址
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