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Circle marking device
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Patent number 8,806,766
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Issue date Aug 19, 2014
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David M. Lee
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Compasses writing implement
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Patent number 8,042,278
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Issue date Oct 25, 2011
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Fritz Lüttgens
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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-
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Measuring compass
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Patent number 7,640,671
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Issue date Jan 5, 2010
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Yu-Ming Tu
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Retractable point compass
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Patent number 6,964,103
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Issue date Nov 15, 2005
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Acme United Corporation
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Chris Chudek
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Drawing compass
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Patent number 6,907,669
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Issue date Jun 21, 2005
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Kedu Han
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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-
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Compass with safety pivot
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Patent number 5,555,630
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Issue date Sep 17, 1996
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Etienne N. De Souza
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Compass having a squat tip
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Patent number 5,546,663
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Issue date Aug 20, 1996
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Helix Limited
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Clive W. Warwicker
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Device for describing arcs
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Patent number 5,542,185
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Issue date Aug 6, 1996
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Fiskars Inc.
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James C. Boda
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Compass pencil clamp
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Patent number 4,358,894
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Issue date Nov 16, 1982
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A & W Products Company, Inc.
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Georg Augustin
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Drawing compass
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Patent number 4,150,486
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Issue date Apr 24, 1979
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Helix International Limited
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Raymond A. Payton
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Drawing instrument
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Patent number 4,146,965
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Issue date Apr 3, 1979
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Helix International Limited
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Raymond A. Payton
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Drawing instrument
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Patent number 4,104,801
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Issue date Aug 8, 1978
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Helix International Limited
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Raymond A. Payton
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Device for cutting circles
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Patent number 3,934,343
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Issue date Jan 27, 1976
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Lawrence Peska Associates, Inc.
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Jacek Witecki
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3805391
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Patent number 3,805,391
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Issue date Apr 23, 1974
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3787980
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Patent number 3,787,980
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Issue date Jan 29, 1974
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3732018
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Patent number 3,732,018
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Issue date May 8, 1973
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3719999
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Patent number 3,719,999
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Issue date Mar 13, 1973
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3543406
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Patent number 3,543,406
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Issue date Dec 1, 1970
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3308538
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Patent number 3,308,538
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Issue date Mar 14, 1967
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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3089246
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Patent number 3,089,246
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Issue date May 14, 1963
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES