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发明名称
FURNACE CHARGE PREHEATING APPARATUS
摘要
申请公布号
CA820227(A)
申请公布日期
1969.08.12
申请号
CAD820227
申请日期
申请人
KOPPERS COMPANY
发明人
EDWIN R. RICHARDS
分类号
主分类号
代理机构
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