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经营范围
发明名称
COAL DRYING
摘要
申请公布号
US3520067(A)
申请公布日期
1970.07.14
申请号
USD3520067
申请日期
1968.10.24
申请人
ESSO RESEARCH & ENG. CO.
发明人
EDGAR C. WINEGARTNER
分类号
F26B5/00;(IPC1-7):F26B3/00
主分类号
F26B5/00
代理机构
代理人
主权项
地址
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