| http://www.w3.org/ns/prov#value | - Patent US5417424 - Computerized wagering system - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsA wagering system such as a lottery with a central computer communicating with agent terminals at which tickets are issued, for example in convenience stores and the like, has a player-operated win-checking system coupled to the communications
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