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Hydrostatic transmission control

  • US 3,157,998 A
  • Filed: 02/28/1963
  • Issued: 11/24/1964
  • Est. Priority Date: 03/19/1962
  • Status: Expired due to Term
First Claim
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3. A FLUID PRESSURE OPERATED SERVO SYSTEM, INCLUDING SERVO MEANS, CONDUIT MEANS CONNECTED TO SAID SERVO MEANS AND CONTAINING FLUID UNDER PRESSURE, VALVE MEANS IN SAID CONDUIT MEANS MOVABLE TO PREDETERMINED POSITIONS FOR DIRECTING THE FLUID TO DIFFERENT PORTIONS OF SAID SERVO MEANS, OTHER MEANS FOR MOVING SAID VALVE MEANS, AND EXTENDABLE FORCE TRANSMITTING MEANS BETWEEN SAID OTHER

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