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发明名称
BARREL AND WEDGE COMBINATION
摘要
申请公布号
ZA201309523(B)
申请公布日期
2014.07.30
申请号
ZA20130009523
申请日期
2013.12.18
申请人
AVENG (AFRICA) LIMITED
发明人
DE KOCK, Gerhardus Nicolaas
分类号
E21D
主分类号
E21D
代理机构
代理人
主权项
地址
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