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发明名称
Process for improving the properties of asphalt and similar bituminous products
摘要
申请公布号
GB775502(A)
申请公布日期
1957.05.22
申请号
GB19540035523
申请日期
1954.12.08
申请人
AB NYNAES-PETROLFUM
发明人
分类号
C08L95/00
主分类号
C08L95/00
代理机构
代理人
主权项
地址
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