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发明名称
Haveuse
摘要
申请公布号
BE603453(A1)
申请公布日期
1961.09.01
申请号
BE19610603453
申请日期
1961.05.05
申请人
COAL INDUSTRY (PATENTS) LIMITED
发明人
分类号
(IPC1-7):E21C
主分类号
(IPC1-7):E21C
代理机构
代理人
主权项
地址
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