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发明名称
Improvements in machines for cutting coal and like minerals
摘要
申请公布号
GB845322(A)
申请公布日期
1960.08.17
申请号
GB19570036593
申请日期
1957.11.25
申请人
GEBR. EICKHOFF MASCHINENFABRIK U. EISENGIESSEREI M.B.H.
发明人
分类号
E21C25/06
主分类号
E21C25/06
代理机构
代理人
主权项
地址
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