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发明名称
Carbon black
摘要
申请公布号
US2178383(A)
申请公布日期
1939.10.31
申请号
US19370148666
申请日期
1937.06.17
申请人
COLUMBIAN CARBON COMPANY
发明人
WIEGAND WILLIAM B.
分类号
C09C1/56
主分类号
C09C1/56
代理机构
代理人
主权项
地址
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