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发明名称
CENTRIFUGALLY CAST DRILL TUBE SEGMENTS
摘要
申请公布号
AU6394790(A)
申请公布日期
1991.08.22
申请号
AU19900063947
申请日期
1990.10.10
申请人
INDUSTRIAL ALLOY COMPANY PTE. LTD.
发明人
BRUCE GRAHAM CHAPMAN
分类号
B65D19/18;E21B17/00
主分类号
B65D19/18
代理机构
代理人
主权项
地址
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