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发明名称
Making carbon black
摘要
申请公布号
US2121463(A)
申请公布日期
1938.06.21
申请号
US19310581039
申请日期
1931.12.14
申请人
CANADIAN ELECTRO PRODUCTS COMPANY LIMITED
发明人
WISDOM STUART A.
分类号
C09C1/54
主分类号
C09C1/54
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代理人
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