SMS HASENCLEVER MASCHINENFABRIK GMBH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4850215 Stroke limiting means for friction clutch pressure piston in a screw pressExpiredMar 10, 88Jul 25, 89[B21J]
4815311 Forging manipulatorExpiredJul 31, 87Mar 28, 89[B21J]
4813263 Forging machineExpiredSep 16, 87Mar 21, 89[B21J]
4796458 Forging manipulatorExpiredAug 19, 87Jan 10, 89[B61B, B21D]
4788842 Open-die forging methodExpiredDec 05, 86Dec 06, 88[B21J]
4750345 Recycling pressure plates and dies in extrusion pressesExpiredApr 28, 87Jun 14, 88[B21C]
4619574 Loading equipment for manipulating tubes in upsetting pressesExpiredOct 31, 83Oct 28, 86[B66F]
4590787 Screw pressExpiredJul 09, 85May 27, 86[B21D]
4563889 Screw pressExpiredMar 13, 84Jan 14, 86[B21J]

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