by delivering current to the grid for hydraulic elevators

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  • Information Patent Application

    SABBATH ELEVATOR

    • Publication number 20140174860
    • Publication date Jun 26, 2014
    • Arie Yakuel
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    DRIVE SYSTEMS

    • Publication number 20110127115
    • Publication date Jun 2, 2011
    • Alan Neil Russell Stannah
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    Hydraulic lift comprising a pressure accumulator and method for con...

    • Publication number 20040074702
    • Publication date Apr 22, 2004
    • Daniel Moser
    • B66 - HOISTING LIFTING HAULING