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发明名称
BASE AND ACCESSORY FOR A MINING PROP
摘要
申请公布号
ZA9003822(B)
申请公布日期
1991.03.27
申请号
ZA19900003822
申请日期
1990.05.18
申请人
PETRUS JOHANNES BADENHORST
发明人
PETRUS JOHANNES BADENHORST
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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