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Patentes

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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US510352416 Nov 199014 Abr 1992Barry Bros. Specialised Services Pty. Ltd.Apparatus for cleaning the inner surfaces of tubes in operating multi-tube heat transfer devices
US587313911 Ago 199723 Feb 1999Filterwerk Mann & Hummel GmbHPipeline pig supply system
US630219926 Abr 200016 Oct 2001Frank's International, Inc.Mechanism for dropping a plurality of balls into tubulars used in drilling, completion and workover of oil, gas and geothermal wells
US688940028 Mar 200310 May 2005One Step Co., Ltd.Cleaning member for medical tubes, porous member for cleaning treatment appliance insertion lumen of endoscope, and cleaning apparatus for cleaning treatment appliance insertion lumen of endoscope

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