Pre-recorded videotapes featuring a video program about 121.5 MHz beacons for use in aviation communication systems

'121.5':10 'aviat':16 'beacon':12 'communic':17 'featur':5 'mhz':11 'pre':2 'pre-record':1 'program':8 'record':3 'system':18 'use':14 'video':7 'videotap':4

Entertainment in the nature of on-going television programs featuring information about 121.5 MHz beacons for use in aviation communication systems

'121.5':14 'aviat':20 'beacon':16 'communic':21 'entertain':1 'featur':11 'go':8 'inform':12 'mhz':15 'natur':4 'on-go':6 'program':10 'system':22 'televis':9 'use':18

121.5

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