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公开(公告)号:US09909700B2
公开(公告)日:2018-03-06
申请号:US15447713
申请日:2017-03-02
Inventor: Joseph O'Brien
CPC classification number: F16L35/00 , F16J13/065 , F16K35/06 , F16L41/04 , F16L2201/20
Abstract: The present invention provides a lockout device and system that can be attached directly to open piping undergoing maintenance or repair and that can be directly under the supervision of the individual that is performing the maintenance.