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经营范围
发明名称
Bitumen composition
摘要
申请公布号
USH876(H)
申请公布日期
1991.01.01
申请号
US19880273146
申请日期
1988.11.17
申请人
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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