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发明名称
URZADZENIE ZABEZPIECZAJACE DLA GORNICZEGO KOMBAJNU CHODNIKOWEGO
摘要
申请公布号
PL98759(B1)
申请公布日期
1978.05.31
申请号
PL19760190316
申请日期
1976.06.09
申请人
发明人
分类号
E21D9/10;(IPC1-7):E21D9/10
主分类号
E21D9/10
代理机构
代理人
主权项
地址
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