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William W. Cushwa JR.
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Hudson, OH, US
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Patents Grants
last 30 patents
Information
Patent Grant
Barricade alert system
Patent number
9,799,181
Issue date
Oct 24, 2017
William W. Cushwa
G08 - SIGNALLING
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Patent Grant
Safety door barricade
Patent number
9,518,421
Issue date
Dec 13, 2016
National School Control Systems, LLC
William W. Cushwa
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Patents Applications
last 30 patents
Information
Patent Application
BARRICADE ALERT SYSTEM
Publication number
20160284178
Publication date
Sep 29, 2016
National School Control Systems, LLC
William W. Cushwa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Safety Door Barricade
Publication number
20140312634
Publication date
Oct 23, 2014
National School Control Systems, LLC
William W. Cushwa
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES