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经营范围
发明名称
Coal getting apparatus
摘要
申请公布号
GB835062(A)
申请公布日期
1960.05.18
申请号
GB19570017980
申请日期
1957.06.06
申请人
GEBR. EICKHOFF MASCHINENFABRIK U. EISENGIESSEREI M.B.H.
发明人
分类号
E21C27/02;E21C35/12
主分类号
E21C27/02
代理机构
代理人
主权项
地址
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