D21B 1/22

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9528222 Feed screw arrangementJun 28, 12Dec 27, 16VALMET AB
9085093 Screw segmentAug 18, 09Jul 21, 15TOYOTA JIDOSHA KABUSHIKI KAISHA
8691050 Methods and devices for continuous transfer of particulate and/or fibrous material between two zones with different temperatures and pressuresNov 23, 09Apr 08, 14IBUS INNOVATION A/S
5076892 Apparatus for pressurized refining of lignocellulose materialJul 20, 89Dec 31, 91Sprout-Bauer, Inc.