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发明名称
METHOD OF AND APPARATUS FOR MOUNTING A ROOF MEMBER OF MINE GALLERY ARCHING
摘要
申请公布号
PL274890(A1)
申请公布日期
1990.04.02
申请号
PL19880274890
申请日期
1988.09.23
申请人
GWARECTWO BUDOWNICTWA GORNICZE
发明人
GUZIK ZDZISLAW;SOLOWIOW RYSZARD;STANIENDA ANTONI;GRACZYK ZBIGNIEW;GOLASZEWSKI ANTONI;BRODZINSKI JANUSZ
分类号
E21D;(IPC1-7):E21D/
主分类号
E21D
代理机构
代理人
主权项
地址
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