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United States Utility Patents
5,689,270 - 5,689,279

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NumberTitle
5,689,270 Navigation and positioning system and method using uncoordinated becon signals
5,689,271 Method and apparatus for civilian receiver operation with P(Y) code in satellite positioning system receiver
5,689,272 Method and system for producing antenna element signals for varying an antenna array pattern
5,689,273 Aircraft surface navigation system
5,689,274 Doppler rate and angle rate passive emitter location
5,689,275 Electromagnetic antenna and transmission line utilizing photonic bandgap material
5,689,276 Housing for antenna device
5,689,277 Withdrawn
5,689,278 Display control method
5,689,279 Integrated electro-optical package



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