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发明名称
(B1) ;COAL PLANNER CONTROL APPARATUS
摘要
申请公布号
PL227355(A1)
申请公布日期
1981.06.19
申请号
PL19800227355
申请日期
1980.10.17
申请人
HALBACH & BRAUN
发明人
BRAUN GERT
分类号
E21C27/32;E21C35/12;(IPC1-7):E21C/
主分类号
E21C27/32
代理机构
代理人
主权项
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