| http://www.w3.org/ns/prov#value | - 20090037623INTEGRATED KEYPAD SYSTEM - A data entry system using a number of different input signals provided by interacting with input means such as keys wherein to at least some of the different input signals a number of symbols including substantially all of the letters of the alphabet of one language are distributively assigned such that at least two of the letters are ambiguously assigned to a
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