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发明名称
WACHLARZOWO-SCHODOWY SPOSOB PROWADZENIA FRONTU WYROBISKA SCIANOWEGO
摘要
申请公布号
PL105101(B1)
申请公布日期
1979.09.29
申请号
PL19760191947
申请日期
1976.08.19
申请人
发明人
分类号
E21C41/00;(IPC1-7):E21C41/00
主分类号
E21C41/00
代理机构
代理人
主权项
地址
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