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经营范围
发明名称
Method for preparing active carbons
摘要
申请公布号
US4921831(A)
申请公布日期
1990.05.01
申请号
US19880259592
申请日期
1988.10.19
申请人
IDEMITSU KOSAN CO., LTD.
发明人
NAKAI, MASAYUKI;YOSHIDA, TAKESHI;TOMURA, KATSUMI
分类号
C01B31/08;C01B31/14
主分类号
C01B31/08
代理机构
代理人
主权项
地址
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