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经营范围
发明名称
WATERPROOF COMPOSITION
摘要
申请公布号
CA297255(A)
申请公布日期
1930.02.04
申请号
CAD297255
申请日期
申请人
THE BITUMINOUS COMPOSITIONS LIMITED
发明人
FREDERICK WILLIAM GOUGH
分类号
主分类号
代理机构
代理人
主权项
地址
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