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Portable art case
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Patent number 11,224,272
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Issue date Jan 18, 2022
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Colorpockit, LLC
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Michael James Bartelme
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A45 - HAND OR TRAVELLING ARTICLES
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Tilt board
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Patent number 10,792,953
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Issue date Oct 6, 2020
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SKM Advanced Products Limited
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Pat McGee
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Storage device of media units
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Patent number 9,747,952
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Issue date Aug 29, 2017
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Robert Alan Dold
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Rolling painting frame
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Patent number 7,984,808
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Issue date Jul 26, 2011
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Red Point Paper Products Co., Limited
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Eddy Lai
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Underwater drawing tablet
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Patent number 7,731,501
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Issue date Jun 8, 2010
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Mark Lloyd Hagan
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Foldable clipboard
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Patent number 7,673,908
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Issue date Mar 9, 2010
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Ginevra Liptan
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Privacy tablet
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Patent number 7,426,797
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Issue date Sep 23, 2008
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Genuity Concepts
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John Delaney
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Underwater drawing tablet
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Patent number 7,264,477
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Issue date Sep 4, 2007
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Mark Lloyd Hagan
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Portable light box
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Patent number 6,981,778
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Issue date Jan 3, 2006
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Artograph, Inc.
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Donald D. Dow
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Collapsible clipboard
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Patent number 6,217,075
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Issue date Apr 17, 2001
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Ching Tsung Tsai
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Clipboard ballistic shield
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Patent number 4,919,037
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Issue date Apr 24, 1990
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American Protective Equipment, Inc.
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Hal D. Mitchell
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3232685
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Patent number 3,232,685
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Issue date Feb 1, 1966
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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3032916
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Patent number 3,032,916
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Issue date May 8, 1962
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2240122
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Patent number 2,240,122
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Issue date Apr 29, 1941
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2029425
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Patent number 2,029,425
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Issue date Feb 4, 1936
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER