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Patent

Hänvisningar finns i följande patent

citeras i Registreringsdatum Utfärdandedatum Ursprunglig innehavare Titel
US465524717 jan 19867 apr 1987Chromalloy American CorporationBall-type check valve assembly
US698151624 sep 20023 jan 2006The United States of America as represented by the United States Department of EnergyFail save shut off valve for filtering systems employing candle filters