Inventor
KNUTSON PERRY
US9 patents
Patents
9 patentsUS5887385AMar 30, 1999
Release mechanism for industrial doors
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US6698490B2Mar 2, 2004
Release mechanism for industrial doors
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US6321822B1Nov 27, 2001
Release mechanism for industrial doors
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US6148897ANov 21, 2000
Release mechanism for industrial doors
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US7699089B2Apr 20, 2010
Power-operated folding door
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US7757437B2Jul 20, 2010
Resilient retention system for a door panel
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US10529159B2Jan 7, 2020
Methods and apparatus to wirelessly interlock doors
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US6942000B2Sep 13, 2005
Coupling mechanism and panel for sectional door
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US11010997B2May 18, 2021
Methods and apparatus to wirelessly interlock doors
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