electronic ciphering and deciphering systems and electronic encryption systems comprising stationary or portable information processing terminals, facsimile transmission and reception units, data ciphering and programming units, voice encryption, transmission, and reception units, voice scrambling units, bulk (multiplex) data encryption units, on-line data encryption units, ciphering units for teleprinter and low speed terminals, ciphering units for electronic mail terminals, ciphering units for packet switch network links, pocket ciphering units, off-line encryption systems, parts and peripherals therefor all for use in secure communications

'bulk':36 'cipher':2,23,47,55,61,69 'communic':85 'compris':10 'data':22,38,44 'deciph':4 'electron':1,7,58 'encrypt':8,28,39,45,74 'facsimil':17 'inform':14 'line':43,73 'link':67 'low':52 'mail':59 'multiplex':37 'network':66 'off-lin':71 'on-lin':41 'packet':64 'part':76 'peripher':78 'pocket':68 'portabl':13 'process':15 'program':25 'recept':20,31 'scrambl':34 'secur':84 'speed':53 'stationari':11 'switch':65 'system':5,9,75 'teleprint':50 'termin':16,54,60 'therefor':79 'transmiss':18,29 'unit':21,26,32,35,40,46,48,56,62,70 'use':82 'voic':27,33

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