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Modular chair assembly
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Patent number 11,178,971
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Issue date Nov 23, 2021
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Waterson Corp
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Waterson Chen
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Hinge
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Patent number 11,041,335
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Issue date Jun 22, 2021
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Waterson Corp
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Waterson Chen
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Hinge device
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Patent number 9,879,456
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Issue date Jan 30, 2018
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Waterson Corp
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Waterson Chen
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Hinge assemblage
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Patent number 9,617,772
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Issue date Apr 11, 2017
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Waterson Corp
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Waterson Chen
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Adjustable torque hinge
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Patent number 8,683,654
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Issue date Apr 1, 2014
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Waterson Corp.
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Waterson Chen
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Weather-resistant lock apparatus
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Patent number 6,860,127
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Issue date Mar 1, 2005
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Waterson Corporation
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Waterson Chen
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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