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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US40132743 Jun 197622 Mar 1977Deutsche Gold- und Silber-Scheideanstalt vormals RoesslerApparatus for guiding and seating a stirrer shaft for laboratory or industrial glass apparatus
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US53643357 Dic 199315 Nov 1994Dorr-Oliver IncorporatedDisc-decanter centrifuge
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Analytical Engineering, Inc.
Centrifugal filter for removing soot from engine oil
US65209026 Sep 200018 Feb 2003Baldwin Filters, Inc.Centrifuge cartridge for removing soot from engine oil
US653719122 Nov 200025 Mar 2003Alfa Laval ABCentrifugal separator
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US67127514 Oct 200230 Mar 2004Alfa Laval ABCentrifugal separator for separating solids from a liquid mixture centrally fed through a gear device
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US678014728 Mar 200224 Ago 2004Varco I/P, Inc.Centrifuge with open conveyor having an accelerating impeller and flow enhancer
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US70183265 Abr 200328 Mar 2006Varco I/P, Inc.Centrifuge with impellers and beach feed
US709063426 Mar 200415 Ago 2006Westfalia Separator AGDriving system for a separator having a centrifugal drum and a neck bearing