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Art craft kit
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Patent number 5,141,438
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Issue date Aug 25, 1992
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Donald Spector
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Pre-school stencil kit
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Patent number 5,100,324
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Issue date Mar 31, 1992
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Dart Industries Inc.
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Nancy D. Slayton
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Drafting instrument
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Patent number 4,899,449
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Issue date Feb 13, 1990
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Simon Fouladian
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Tracing stencil tablet
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Patent number 4,563,154
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Issue date Jan 7, 1986
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S.D.V. Incorporated
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James W. Vandervort
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Drawing pattern for the human form
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Patent number 4,242,802
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Issue date Jan 6, 1981
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Robert Bosch GmbH
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Rolf-Dieter Jenner
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Two-dimensional drawing board manikin
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Patent number 4,026,041
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Issue date May 31, 1977
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The United States of America as represented by the Secretary of the Air Force
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Kenneth W. Kennedy
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3696529
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Patent number 3,696,529
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Issue date Oct 10, 1972
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2201479
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Patent number 2,201,479
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Issue date May 21, 1940
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1974442
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Patent number 1,974,442
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Issue date Sep 25, 1934
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1558041
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Patent number 1,558,041
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Issue date Oct 20, 1925
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1541480
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Patent number 1,541,480
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Issue date Jun 9, 1925
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1495854
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Patent number 1,495,854
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Issue date May 27, 1924
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1425597
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Patent number 1,425,597
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Issue date Aug 15, 1922
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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1358572
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Patent number 1,358,572
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Issue date Nov 9, 1920
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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282659
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Patent number 282,659
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Issue date Aug 7, 1883
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES