Downloadable mobile applications for finding the lowest prices for items on sale, using universal product codes, bar codes, matrix bar codes and geo-fencing, namely, using the global positioning system (GPS) or radio frequency identification (RFID) to define geographical boundaries

'applic':3 'bar':17,20 'boundari':41 'code':16,18,21 'defin':39 'download':1 'fenc':25 'find':5 'frequenc':35 'geo':24 'geo-fenc':23 'geograph':40 'global':29 'gps':32 'identif':36 'item':10 'lowest':7 'matrix':19 'mobil':2 'name':26 'posit':30 'price':8 'product':15 'radio':34 'rfid':37 'sale':12 'system':31 'univers':14 'use':13,27

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