TREA

Proportional compasses or dividers

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Industry

  • CPC
  • B43L9/08
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B43Writing accessories B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING B43L9/00Circular curve-drawing or like instruments

Current Industry

B43L9/08Proportional compasses or dividers
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Equal divider
    • Patent number 11,951,766
    • Issue date Apr 9, 2024
    • Tai-Yu Lee
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Measuring and/or plotting and/or sighting instrument
    • Patent number 9,250,072
    • Issue date Feb 2, 2016
    • Robert Lévy
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    System and method for creating purportionately accurate figures
    • Patent number 7,926,188
    • Issue date Apr 19, 2011
    • Gregg B. Thorkelson
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Template and method for trisecting an angle
    • Patent number 6,823,596
    • Issue date Nov 30, 2004
    • Daniel William Roberts
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Dividing rule
    • Patent number 6,243,963
    • Issue date Jun 12, 2001
    • Lee Valey Tools, Ltd.
    • Steve K. Jones
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Draftsman's dimensional divider
    • Patent number 4,599,802
    • Issue date Jul 15, 1986
    • Walter L. Keller
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Measuring instrument
    • Patent number 4,270,273
    • Issue date Jun 2, 1981
    • A. H. Robins Company, Inc.
    • Brian E. Berger
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3634942
    • Patent number 3,634,942
    • Issue date Jan 18, 1972
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2865106
    • Patent number 2,865,106
    • Issue date Dec 23, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2770884
    • Patent number 2,770,884
    • Issue date Nov 20, 1956
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2645021
    • Patent number 2,645,021
    • Issue date Jul 14, 1953
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2560697
    • Patent number 2,560,697
    • Issue date Jul 17, 1951
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2236949
    • Patent number 2,236,949
    • Issue date Apr 1, 1941
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1710414
    • Patent number 1,710,414
    • Issue date Apr 23, 1929
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1696832
    • Patent number 1,696,832
    • Issue date Dec 25, 1928
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1321924
    • Patent number 1,321,924
    • Issue date Nov 18, 1919
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1304017
    • Patent number 1,304,017
    • Issue date May 20, 1919
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1238440
    • Patent number 1,238,440
    • Issue date Aug 28, 1917
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1193914
    • Patent number 1,193,914
    • Issue date Aug 8, 1916
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1133587
    • Patent number 1,133,587
    • Issue date Mar 30, 1915
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1033634
    • Patent number 1,033,634
    • Issue date Jul 23, 1912
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    967267
    • Patent number 967,267
    • Issue date Aug 16, 1910
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    936857
    • Patent number 936,857
    • Issue date Oct 12, 1909
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    930408
    • Patent number 930,408
    • Issue date Aug 10, 1909
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    835466
    • Patent number 835,466
    • Issue date Nov 6, 1906
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    829938
    • Patent number 829,938
    • Issue date Aug 28, 1906
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    753221
    • Patent number 753,221
    • Issue date Mar 1, 1904
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    730105
    • Patent number 730,105
    • Issue date Jun 2, 1903
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    631987
    • Patent number 631,987
    • Issue date Aug 29, 1899
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    598911
    • Patent number 598,911
    • Issue date Feb 15, 1898
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents