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发明名称
Manufacturing process for a light-weight building block
摘要
申请公布号
GB930502(A)
申请公布日期
1963.07.03
申请号
GB19590037647
申请日期
1959.11.06
申请人
WILLEM BEUKERS
发明人
分类号
C04B22/06;C04B28/14
主分类号
C04B22/06
代理机构
代理人
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