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经营范围
发明名称
Improvements in drilling apparatus
摘要
申请公布号
AU2004219749(A1)
申请公布日期
2004.09.23
申请号
AU20040219749
申请日期
2004.03.10
申请人
ARMADRILLO LIMITED
发明人
TIMOTHY GARRY WILLIAMS
分类号
E21B;E21D20/00;G06F19/00;(IPC1-7):G06F19/00
主分类号
E21B
代理机构
代理人
主权项
地址
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