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经营范围
发明名称
Improvements in machines for constructing brick walls and the like
摘要
申请公布号
GB971653(A)
申请公布日期
1964.09.30
申请号
GB19620004159
申请日期
1962.02.02
申请人
DEMAREST MACHINES INC.
发明人
分类号
E04G21/22
主分类号
E04G21/22
代理机构
代理人
主权项
地址
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