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发明名称
DEVICE FOR BORING ABLE OF FIXING ITSELF IN THE BORE
摘要
申请公布号
YU35797(B)
申请公布日期
1981.06.30
申请号
YU19740001980
申请日期
1974.07.16
申请人
ORSZAGOS KOOLAJ- ES GAZIPARI TROSZT
发明人
HORVATH ROBERT;LASZLO RUDOLF;SZABO GEZA;LASZLO RUDOLF;GEZA SZABO;SZABO GEZA
分类号
E21B47/00;(IPC1-7):E21B47/00
主分类号
E21B47/00
代理机构
代理人
主权项
地址
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