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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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Flippable board method and system
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Patent number 9,718,299
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Issue date Aug 1, 2017
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CLARUS GLASSBOARDS, LLC
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Dony Dawson
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Universal triangle
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Patent number 4,625,425
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Issue date Dec 2, 1986
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Ricardo G. Senno
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Drafting and drawing table
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Patent number 4,450,774
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Issue date May 29, 1984
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Johnny L. Weaver
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Drawing board apparatus
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Patent number 4,351,117
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Issue date Sep 28, 1982
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Earl R. Wade
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3345751
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Patent number 3,345,751
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Issue date Oct 10, 1967
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3256606
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Patent number 3,256,606
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Issue date Jun 21, 1966
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3032917
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Patent number 3,032,917
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Issue date May 8, 1962
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2825426
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Patent number 2,825,426
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Issue date Mar 4, 1958
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2414606
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Patent number 2,414,606
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Issue date Jan 21, 1947
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2141350
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Patent number 2,141,350
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Issue date Dec 27, 1938
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2077252
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Patent number 2,077,252
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Issue date Apr 13, 1937
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1980917
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Patent number 1,980,917
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Issue date Nov 13, 1934
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1763885
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Patent number 1,763,885
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Issue date Jun 17, 1930
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1542582
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Patent number 1,542,582
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Issue date Jun 16, 1925
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1440993
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Patent number 1,440,993
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Issue date Jan 2, 1923
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1400838
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Patent number 1,400,838
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Issue date Dec 20, 1921
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1347085
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Patent number 1,347,085
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Issue date Jul 20, 1920
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1311867
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Patent number 1,311,867
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Issue date Aug 5, 1919
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1164253
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Patent number 1,164,253
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Issue date Dec 14, 1915
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1040010
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Patent number 1,040,010
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Issue date Oct 1, 1912
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1035755
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Patent number 1,035,755
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Issue date Aug 13, 1912
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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967878
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Patent number 967,878
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Issue date Aug 23, 1910
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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870224
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Patent number 870,224
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Issue date Nov 5, 1907
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES