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经营范围
发明名称
Distillation of carbonaceous materials
摘要
申请公布号
US1886262(A)
申请公布日期
1932.11.01
申请号
US19290356599
申请日期
1929.04.19
申请人
HARALD NIELSEN;BRYAN LAING
发明人
NIELSEN HARALD;LAING BRYAN
分类号
C10G7/00
主分类号
C10G7/00
代理机构
代理人
主权项
地址
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