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发明名称
Coke oven charging-hole closure construction
摘要
申请公布号
US2203698(A)
申请公布日期
1940.06.11
申请号
US19370135396
申请日期
1937.04.07
申请人
KOPPERS COMPANY
发明人
SCHMIDT WILHELM
分类号
C10B25/20;C10B25/24
主分类号
C10B25/20
代理机构
代理人
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地址
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