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经营范围
发明名称
Improvements in or relating to process of and apparatus for producing carbon black
摘要
申请公布号
GB631736(A)
申请公布日期
1949.11.09
申请号
GB19460027282
申请日期
1946.09.11
申请人
PHILLIPS PETROLEUM COMPANY
发明人
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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