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United States Utility Patents
5,228,290 - 5,228,299

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NumberTitle
5,228,290 Hydrodynamic variator of velocity having radial pistons
5,228,291 Motor with rotating mass induced vibration driving means
5,228,292 Arrangement for controlling the boost pressure in an internal-combustion engine supercharged by an exhaust-gas turbocharger of adjustable turbine geometry
5,228,293 Low temperature solar-to-electric power conversion system
5,228,294 Rotary internal combustion engine
5,228,295 No loss fueling station for liquid natural gas vehicles
5,228,296 Cryogenic rectification system with argon heat pump
5,228,297 Cryogenic rectification system with dual heat pump
5,228,298 Cryogenic rectification system with helical dry screw expander
5,228,299 Cryopump water drain



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