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发明名称
CONVEYING ABRASIVE MATERIALS DOWN BOREHOLES
摘要
申请公布号
ZA8806516(B)
申请公布日期
1989.05.30
申请号
ZA19880006516
申请日期
1988.09.01
申请人
POWER RESEARCH (PROPRIETARY) LIMITED
发明人
FELICE GARBINI
分类号
F16L;F17D
主分类号
F16L
代理机构
代理人
主权项
地址
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