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发明名称
METHOD OF KEEPING ALIVE PERSONS BURRIED IN INSIDE A MINE WORKING OF A COAL, ORE ETC. MINE UNTIL ARRIVAL ON A RECUE CREW
摘要
申请公布号
PL320031(A1)
申请公布日期
1998.05.25
申请号
PL19970320031
申请日期
1997.08.14
申请人
RATAJCZYK ANDRZEJ
发明人
RATAJCZYK ANDRZEJ
分类号
E21F11/00;(IPC1-7):E21F11/00
主分类号
E21F11/00
代理机构
代理人
主权项
地址
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