Hans and Fritz Stahlecker

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5195312 Spinning or twisting spindle arrangementExpiredOct 11, 90Mar 23, 93[F16C, D01H]
5119623 False-twisting nozzle for pneumatic false-twist spinningExpiredAug 20, 90Jun 09, 92[D01H]
5092115 Spinning or twisting spindleExpiredDec 12, 90Mar 03, 92[F16C, D01H]
4967547 Drafting unit for a spinning machineExpiredJul 14, 89Nov 06, 90[D01H]
4612762 Cleaning arrangement for open-end friction spinning machinesExpiredOct 19, 84Sep 23, 86[D01H]
4593438 Spinning machine drafting roller adjusting arrangementExpiredOct 04, 84Jun 10, 86[D01H]
4574583 Opening roller arrangementExpiredJun 11, 84Mar 11, 86[D01H, D01G]
4571933 Open-end friction spinning machine having a plurality of spinning unitsExpiredOct 23, 84Feb 25, 86[D01H]
4567722 Fiber feed arrangement for open-end friction spinning machinesExpiredSep 04, 84Feb 04, 86[D01H]

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