| http://www.w3.org/ns/prov#value | - etrieving stored information to a plurality of output units in response to touching display panel areas associated with the information to be retrievedUS4806709 *26 May 198721 Feb 1989Microtouch Systems, Inc.Method of and apparatus for sensing the location, such as coordinates, of designated points on an electrically sensitive touch-screen surfaceUS4876461 *23 Feb 198924 Oct 1989W. H. Brady Co.Sel
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