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发明名称
A spearhead assembly
摘要
申请公布号
AU2002950911(D0)
申请公布日期
2002.09.12
申请号
AU20020950911
申请日期
2002.08.21
申请人
INDUSTRIAL INNOVATIONS AND CONCEPTS PTY. LTD.
发明人
分类号
E21B23/14;E21B31/20
主分类号
E21B23/14
代理机构
代理人
主权项
地址
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