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Priority to JP5599590UpriorityCriticalpatent/JPH0416384U/ja
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System definition and investigation of the on site processing of en route sensor signals. Volume 2: Beacon processing investigation[Final Report, Sep. 1974- Sep. 1976]
Study of noise in air route traffic control center, flight service station, air traffic control tower and remote facilities(Noise reduction and control in FAA air traffic control, navigational, and service facilities)[Final Report, 18 Nov. 1971- 18 May 1972]