The Reactive Typewriter Program 84-character keyboard including alphabetical upper and lower case for good readability. If the machine is restricted to only a single case, the lower case is preferred. The reactive typewriter should be portable. the reactive typewriter should operate over any commercially used, dial-type telephone (voice) or telegraph (Telex) line or over leased (nondial) telegraph lines interchangeably. CACM January, 1963 Mooers, C. N. CA630118 ES March 17, 1982 10:10 AM 1071 5 3196 3196 5 3196 3196 5 3196 3196 5 3196 3196 6 3196