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经营范围
发明名称
Improvements in or relating to building bricks
摘要
申请公布号
GB570967(A)
申请公布日期
1945.07.31
申请号
GB19430013796
申请日期
1943.08.24
申请人
JOHN LLOYD
发明人
分类号
E04B2/10
主分类号
E04B2/10
代理机构
代理人
主权项
地址
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