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经营范围
发明名称
GRIPPING DEVICE
摘要
申请公布号
US3565187(A)
申请公布日期
1971.02.23
申请号
USD3565187
申请日期
1969.09.18
申请人
ATLAS COPCO AB.
发明人
NILS GUNNAR JONSSON;JOHN ARNE LAGERSTEDT
分类号
E21B19/16;E21B3/02;(IPC1-7):E21C5/00;B23Q5/00
主分类号
E21B19/16
代理机构
代理人
主权项
地址
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