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发明名称
URZADZENIE DO PRZESUWANIA MASZYNY GORNICZEJ W CHODNIKU
摘要
申请公布号
PL201380(A1)
申请公布日期
1978.07.31
申请号
PL19770201380
申请日期
1977.10.08
申请人
DOSCO OVERSEAS ENG LTD
发明人
分类号
E21C29/00;(IPC1-7):E21D/
主分类号
E21C29/00
代理机构
代理人
主权项
地址
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