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Douglas Soren Nielsen
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Placentia, CA, US
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Patents Grants
last 30 patents
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Patent Grant
Locking hinge with spherical bearing assemblies
Patent number
9,500,014
Issue date
Nov 22, 2016
Hartwell Corporation
Douglas Soren Nielsen
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Patents Applications
last 30 patents
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Patent Application
LOCKING HINGE WITH SPHERICAL BEARING ASSEMBLIES
Publication number
20150252602
Publication date
Sep 10, 2015
HARTWELL CORPORATION
Douglas Soren Nielsen
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES