Dowty Hydraulic Units Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4585029 Electro-hydraulic servo valveExpiredFeb 05, 85Apr 29, 86[F15B]
4368013 Gear motor with fluid pressure groove and recess to facilitate startingExpiredJun 10, 80Jan 11, 83[F03C, F01C]
4325307 Buffer stopExpiredMay 05, 80Apr 20, 82[B61K]

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