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经营范围
发明名称
Coke-oven door
摘要
申请公布号
US2478215(A)
申请公布日期
1949.08.09
申请号
US19440538238
申请日期
1944.06.01
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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