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经营范围
发明名称
Thermal cracking
摘要
申请公布号
US2678956(A)
申请公布日期
1954.05.18
申请号
US19500154845
申请日期
1950.04.08
申请人
KOPPERS COMPANY, INC.
发明人
HASCHE RUDOLPH LEONARD
分类号
C07C4/04
主分类号
C07C4/04
代理机构
代理人
主权项
地址
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