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经营范围
发明名称
Drill bits.
摘要
申请公布号
ZA200500946(B)
申请公布日期
2005.10.26
申请号
ZA20050000946
申请日期
2005.02.02
申请人
BADENHORST, PETRUS, JOHANNES;COETZER, JOHAN, FREDERIK, OTTO
发明人
BADENHORST, PETRUS, JOHANNES;COETZER, JOHAN, FREDERIK, OTTO
分类号
E21B
主分类号
E21B
代理机构
代理人
主权项
地址
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