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经营范围
发明名称
A DRILLING METHOD
摘要
申请公布号
ZA8207029(B)
申请公布日期
1983.07.27
申请号
ZA19820007029
申请日期
1982.09.24
申请人
ADVANCED MINING TECHNOLOGY PTY LTD
发明人
REEKS GRAHAM WALTER;FALTER FRANZ XAVIER
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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