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Energy efficient sign
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Patent number 9,039,245
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Issue date May 26, 2015
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3M Innovative Properties Company
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Michael A. Meis
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Neon tube support
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Patent number 5,464,178
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Issue date Nov 7, 1995
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Everbrite, Inc.
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Harold M. Grinwald
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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2850560
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Patent number 2,850,560
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Issue date Sep 2, 1958
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS