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经营范围
发明名称
AKTIVATOR.
摘要
申请公布号
NO802202(A)
申请公布日期
1981.01.26
申请号
NO19800002202
申请日期
1980.07.22
申请人
OTIS ENGINEERING CORP,
发明人
FREDD, JOHN VICTOR,
分类号
E21B34/10;(IPC1-7):E21B/
主分类号
E21B34/10
代理机构
代理人
主权项
地址
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