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Pressure switch system
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Patent number 10,600,595
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Issue date Mar 24, 2020
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HYDRA-ELECTRIC COMPANY
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John Chick Hong Tang
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H01 - BASIC ELECTRIC ELEMENTS
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Variable venturi flow switch
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Patent number 10,529,511
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Issue date Jan 7, 2020
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HYDRA-ELECTRIC COMPANY
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John Chick Hong Tang
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H01 - BASIC ELECTRIC ELEMENTS
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Variable venturi flow switch
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Patent number 9,978,549
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Issue date May 22, 2018
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HYDRA-ELECTRIC COMPANY
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John Chick Hong Tang
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H01 - BASIC ELECTRIC ELEMENTS
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Pressure switch system
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Patent number 9,966,211
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Issue date May 8, 2018
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HYDRA-ELECTRIC COMPANY
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John Chick Hong Tang
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H01 - BASIC ELECTRIC ELEMENTS
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Pressure devices
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Patent number 5,331,856
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Issue date Jul 26, 1994
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Pall Corporation
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Ronald F. Cassidy
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H01 - BASIC ELECTRIC ELEMENTS
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-
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Vacuum pump switch
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Patent number 4,309,149
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Issue date Jan 5, 1982
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The Bendix Corporation
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Howard L. McCombs
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H01 - BASIC ELECTRIC ELEMENTS
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3106623
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Patent number 3,106,623
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Issue date Oct 8, 1963
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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3093716
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Patent number 3,093,716
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Issue date Jun 11, 1963
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H01 - BASIC ELECTRIC ELEMENTS
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3077524
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Patent number 3,077,524
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Issue date Feb 12, 1963
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H01 - BASIC ELECTRIC ELEMENTS