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Class Information
Number: 434/241
Name: Education and demonstration > Radio navigation > Simulation of upwardly directed airfield or landing approach marker radio beam
Description: Subject matter including an imitation of a vertically directed radio beam used to designate the location of an airport or the path to be followed by an aircraft landing thereon.

Patents under this class:

Patent Number Title Of Patent Date Issued
4419079 Aircraft piloting aid system Dec. 6, 1983
4195300 Device for simulating the locating signals of an ILS beacon Mar. 25, 1980

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