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经营范围
发明名称
Selbstdichtende Koksofentuer
摘要
申请公布号
DE909452(C)
申请公布日期
1954.04.22
申请号
DE1950K007493
申请日期
1950.10.03
申请人
KOPPERS COMPANY INC.
发明人
ACKEREN JOSEPH VAN
分类号
C10B25/06
主分类号
C10B25/06
代理机构
代理人
主权项
地址
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