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Shutter system
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Patent number 10,731,406
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Issue date Aug 4, 2020
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Mark Kitterman
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Panelless shutter
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Patent number 9,267,320
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Issue date Feb 23, 2016
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Mark Kitterman
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Panelless shutter
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Patent number 8,201,609
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Issue date Jun 19, 2012
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Mark Kitterman
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES