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发明名称
(B2) ;METHOD OF EXPLOITING A THICK DEPOSIT
摘要
申请公布号
PL219124(A2)
申请公布日期
1980.10.20
申请号
PL19790219124
申请日期
1979.10.18
申请人
GLOWNY INSTYTUT GORNICTWA
发明人
KONOPKO WLADYSLAW;KURZEJA ADAM
分类号
E21C;E21C41/00;(IPC1-7):E21C/
主分类号
E21C
代理机构
代理人
主权项
地址
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