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发明名称
BOHRVORRICHTUNG.
摘要
申请公布号
AT21434(T)
申请公布日期
1986.08.15
申请号
AT19830400254T
申请日期
1983.02.07
申请人
SUIED, JOSEPH PAUL
发明人
SUIED, JOSEPH PAUL
分类号
E21B7/28;E21B10/32;(IPC1-7):E21B10/32
主分类号
E21B7/28
代理机构
代理人
主权项
地址
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