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经营范围
发明名称
Improvements in and relating to mortar, concrete and the like
摘要
申请公布号
GB349957(A)
申请公布日期
1931.06.01
申请号
GB19300000064
申请日期
1930.01.01
申请人
FRANCOIS ERNEST MARECHAL
发明人
分类号
B28C7/00
主分类号
B28C7/00
代理机构
代理人
主权项
地址
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