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经营范围
发明名称
MINE ARCHING
摘要
申请公布号
PL307815(A1)
申请公布日期
1996.09.30
申请号
PL19950307815
申请日期
1995.03.21
申请人
GLOWNY INSTYTUT GORNICTWA
发明人
PEREK JAN;KOWALSKI EDWARD;SAWKA BOHDAN;RULKA KAZIMIERZ;SITEK JERZY;KOZIEL KAROL
分类号
E21D11/14;(IPC1-7):E21D11/14
主分类号
E21D11/14
代理机构
代理人
主权项
地址
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