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发明名称
BROENNUTSTYR
摘要
申请公布号
NO843860(A)
申请公布日期
1985.03.28
申请号
NO19840003860
申请日期
1984.09.26
申请人
AVA INT CORP,
发明人
AKKERMAN, NEIL H.,
分类号
E21B23/02;E21B23/06;(IPC1-7):E21B/
主分类号
E21B23/02
代理机构
代理人
主权项
地址
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