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Bryce Larrabee
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Harvard, MA, US
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Patents Grants
last 30 patents
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Patent Grant
Automatic door closure for double-acting doors
Patent number
6,990,772
Issue date
Jan 31, 2006
Alan Eckel
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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last 30 patents
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Patent Application
Automatic door closure for double-acting doors
Publication number
20040244293
Publication date
Dec 9, 2004
Alan Eckel
Alan Eckel
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES