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发明名称
Carbon black
摘要
申请公布号
US2599981(A)
申请公布日期
1952.06.10
申请号
US19490134520
申请日期
1949.12.22
申请人
COLUMBIAN CARBON COMPANY
发明人
EKHOLM WESLEY C.
分类号
C09C1/50
主分类号
C09C1/50
代理机构
代理人
主权项
地址
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