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发明名称
Improvements in and relating to bricks or blocks for building purposes
摘要
申请公布号
GB392911(A)
申请公布日期
1933.05.09
申请号
GB19310031008
申请日期
1931.11.09
申请人
HERBERT GEORGE MULLARD
发明人
分类号
E04B2/04
主分类号
E04B2/04
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代理人
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