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发明名称
FRICTIONAL STAND
摘要
申请公布号
PL109884(U1)
申请公布日期
2001.01.29
申请号
PL19990109884U
申请日期
1999.07.21
申请人
GLOWNY INSTYTUT GORNICTWA
发明人
分类号
E21D15/28;E21D15/55;(IPC1-7):E21D15/55
主分类号
E21D15/28
代理机构
代理人
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地址
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