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Glenn Richard Hubbard
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Racine, WI, US
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last 30 patents
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Patent Grant
Four position valve assembly
Patent number
4,089,171
Issue date
May 16, 1978
Webster Electric Company, Inc.
Glenn R. Hubbard
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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Patent Grant
Hydraulic system for controlling a gang of lawn mowers
Patent number
3,992,858
Issue date
Nov 23, 1976
Jacobsen Manufacturing Company
Glenn Richard Hubbard
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL