专利名称：Device for releasably connecting well tools发明人：Imre I. Gazda申请号：US07/037811申请日：19870413公开号：US04750560A公开日：19880614
摘要：A device for releasably connecting well tools together for disconnectionthereof downhole in a well without jarring but in response to a series of upward pulls onthe cable or flexible line by which the well tools are lowered into the well.
申请人：OTIS ENGINEERING CORPORATION
代理人：Albert W. Carroll
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