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经营范围
发明名称
An improved building material
摘要
申请公布号
GB422920(A)
申请公布日期
1935.01.17
申请号
GB19330020150
申请日期
1933.07.17
申请人
BERNARD NOVAMBERE
发明人
分类号
E04C2/34
主分类号
E04C2/34
代理机构
代理人
主权项
地址
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