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经营范围
发明名称
Production of pitch from petroleum residues
摘要
申请公布号
US2752290(A)
申请公布日期
1956.06.26
申请号
US19530394558
申请日期
1953.11.27
申请人
GODFREY L. CABOT, INC.
发明人
BEATTIE ROBERT D.
分类号
C10C3/00;C10L5/16
主分类号
C10C3/00
代理机构
代理人
主权项
地址
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