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发明名称
IMPROVEMENTS IN BITUMENS
摘要
申请公布号
GB1243680(A)
申请公布日期
1971.08.25
申请号
GB19680059464
申请日期
1968.12.13
申请人
ESSO RESEARCH AND ENGINEERING COMPANY
发明人
CHARLES GAESTEL;JEAN VALAYER
分类号
C10C3/00
主分类号
C10C3/00
代理机构
代理人
主权项
地址
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