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  • B43L11/055
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BPERFORMING OPERATIONS TRANSPORTING B43Writing accessories B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING B43L11/00Non-circular-curve-drawing instruments

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B43L11/055with guides
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Ellipse Scribe
    • Patent number 5,555,631
    • Issue date Sep 17, 1996
    • Daniel J. Houston
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Device for circumscribing circles and ellipses
    • Patent number 5,526,573
    • Issue date Jun 18, 1996
    • The Fletcher-Terry Company
    • Alan R. Peters
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Device for circumscribing circles and ellipses
    • Patent number 5,430,946
    • Issue date Jul 11, 1995
    • The Fletcher-Terry Company
    • Alan R. Peters
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Device for drawing elliptical curves
    • Patent number 5,189,800
    • Issue date Mar 2, 1993
    • Shiro Morita
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ellipsograph as a drafting tool
    • Patent number 5,123,170
    • Issue date Jun 23, 1992
    • Castaneda-Mori Enrique
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ellipsograph
    • Patent number 5,058,282
    • Issue date Oct 22, 1991
    • Albert G. Coll
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ellipsograph structure
    • Patent number 5,056,230
    • Issue date Oct 15, 1991
    • Yuk L. Lok
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ellipsograph
    • Patent number 4,688,331
    • Issue date Aug 25, 1987
    • Xingdi Shen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ellipsograph
    • Patent number 4,447,954
    • Issue date May 15, 1984
    • Marian Poll
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ellipsograph
    • Patent number 4,356,633
    • Issue date Nov 2, 1982
    • Marian Poll
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Device for describing an ellipse
    • Patent number 4,244,106
    • Issue date Jan 13, 1981
    • Donald C. Pierce
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Apparatus for tracing ellipses
    • Patent number 4,166,320
    • Issue date Sep 4, 1979
    • Pierre Magnat
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Oval compass
    • Patent number 4,148,144
    • Issue date Apr 10, 1979
    • Norman; Ron L.
    • Walter E. Stiles
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ellipsograph
    • Patent number 4,048,724
    • Issue date Sep 20, 1977
    • Paul H. Keuver
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ellipse drawing instrument
    • Patent number 4,014,101
    • Issue date Mar 29, 1977
    • Shinichi Yamaoka
    • Suehiro Mizukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3562915
    • Patent number 3,562,915
    • Issue date Feb 16, 1971
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3331133
    • Patent number 3,331,133
    • Issue date Jul 18, 1967
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3323214
    • Patent number 3,323,214
    • Issue date Jun 6, 1967
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2996804
    • Patent number 2,996,804
    • Issue date Aug 22, 1961
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2925655
    • Patent number 2,925,655
    • Issue date Feb 23, 1960
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2863218
    • Patent number 2,863,218
    • Issue date Dec 9, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2841873
    • Patent number 2,841,873
    • Issue date Jul 8, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2827702
    • Patent number 2,827,702
    • Issue date Mar 25, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2790240
    • Patent number 2,790,240
    • Issue date Apr 30, 1957
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2777199
    • Patent number 2,777,199
    • Issue date Jan 15, 1957
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2670540
    • Patent number 2,670,540
    • Issue date Mar 2, 1954
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2646623
    • Patent number 2,646,623
    • Issue date Jul 28, 1953
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2525606
    • Patent number 2,525,606
    • Issue date Oct 10, 1950
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2494557
    • Patent number 2,494,557
    • Issue date Jan 17, 1950
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2477203
    • Patent number 2,477,203
    • Issue date Jul 26, 1949
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES