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发明名称
PACKING BRATTICE FOR LONGWALLS WITH SELF-ADVANCING ROOF SUPPORTS
摘要
申请公布号
PL275010(A1)
申请公布日期
1990.04.02
申请号
PL19880275010
申请日期
1988.09.28
申请人
KATOWICKIE GWARECTWO WEGLOWE K
发明人
NAPIERACZ TADEUSZ;KANDZIA ANTONI;LISIECKI BRONISLAW;FILIPEK MARIAN;CHROBAK STANISLAW;OPALA ALBERT;GASKA JOZEF;BABIARZ MARIAN
分类号
E21C;E21F;(IPC1-7):E21F/;E21C/
主分类号
E21C
代理机构
代理人
主权项
地址
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