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Multi-component nozzle system
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Patent number 9,247,685
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Issue date Jan 26, 2016
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John S. Youngquist
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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LED display assembly
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Patent number 6,549,179
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Issue date Apr 15, 2003
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John S. Youngquist
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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LED display assembly
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Patent number 6,307,527
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Issue date Oct 23, 2001
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John S. Youngquist
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Storm monitor
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Patent number 5,545,975
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Issue date Aug 13, 1996
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John S. Youngquist
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G01 - MEASURING TESTING
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Storm monitor
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Patent number 5,504,421
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Issue date Apr 2, 1996
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John S. Youngquist
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G01 - MEASURING TESTING
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Storm monitor
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Patent number 5,502,371
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Issue date Mar 26, 1996
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John S. Youngquist
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G01 - MEASURING TESTING
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Storm monitor
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Patent number 5,500,586
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Issue date Mar 19, 1996
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John S. Youngquist
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G01 - MEASURING TESTING
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Storm monitor
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Patent number 5,500,602
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Issue date Mar 19, 1996
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John S. Youngquist
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G01 - MEASURING TESTING
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Storm monitor
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Patent number 5,408,175
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Issue date Apr 18, 1995
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John S. Youngquist
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G01 - MEASURING TESTING
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Storm monitor
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Patent number 5,245,274
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Issue date Sep 14, 1993
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John S. Youngquist
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G01 - MEASURING TESTING