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发明名称
BERGBAU-GEWINNUNGSMASCHINE
摘要
申请公布号
DE2819802(A1)
申请公布日期
1978.11.23
申请号
DE19782819802
申请日期
1978.05.05
申请人
COAL INDUSTRY (PATENTS) LTD.
发明人
KEITH OUTRAM,JOHN
分类号
E21C33/00;(IPC1-7):E21C33/00
主分类号
E21C33/00
代理机构
代理人
主权项
地址
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