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United States Utility Patents
4,991,390 - 4,991,399

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NumberTitle
4,991,390 Mounting and cooling turbine nozzle vanes
4,991,391 System for cooling in a gas turbine
4,991,392 Altitude-sensitive fuel flow control device
4,991,393 Spacecraft guidance and control system
4,991,394 High performance turbine engine
4,991,395 Device for cleaning the exhaust gases of a combustion engine in use
4,991,396 High performance burner
4,991,397 Hydraulic turbine with virtual head drop and method for its manufacture
4,991,398 Combustor fuel nozzle arrangement
4,991,399 Device for temporarily overcooling a cooled detector and detector comprising such a cooling device



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