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Vending machine
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Patent number D350987
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Issue date Sep 27, 1994
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Wright Food Systems, Inc.
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Christopher B. Wright
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D20 - Sales and advertising equipment
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Automated food vending system
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Patent number 5,285,041
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Issue date Feb 8, 1994
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Wright Food Systems, Inc.
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Christopher B. Wright
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G07 - CHECKING-DEVICES
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Automated food vending system
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Patent number 5,147,068
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Issue date Sep 15, 1992
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Wright Food Systems, Inc.
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Christopher B. Wright
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G07 - CHECKING-DEVICES