TREA

for drawing involutes

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  • CPC
  • B43L11/08
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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 B43L11/00Non-circular-curve-drawing instruments

Current Industry

B43L11/08for drawing involutes
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Drawing device for creating mandala
    • Patent number 8,458,918
    • Issue date Jun 11, 2013
    • Ostberg Design APS
    • Mette Østberg
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Drawing apparatus
    • Patent number 7,546,686
    • Issue date Jun 16, 2009
    • Genie Toys PLC
    • Casey William Norman
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Design drawing device
    • Patent number 5,918,373
    • Issue date Jul 6, 1999
    • Charles Arnold Cummings
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Drawing device
    • Patent number 5,709,033
    • Issue date Jan 20, 1998
    • Charles Arnold Cummings
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Gear socket structure for a designing rule
    • Patent number 5,357,681
    • Issue date Oct 25, 1994
    • Ming-Chieh Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Amusement apparatus for drawing a distorted caricature by tracing a...
    • Patent number 4,945,643
    • Issue date Aug 7, 1990
    • Adolph E. Goldfarb
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Apparatus for drawing compound designs, with offsetting, size-varyi...
    • Patent number 4,825,556
    • Issue date May 2, 1989
    • Adolph E. Goldfarb
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Dispensing container
    • Patent number 4,451,164
    • Issue date May 29, 1984
    • James E. Roberts
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Drawing instrument or apparatus
    • Patent number 4,391,045
    • Issue date Jul 5, 1983
    • Denys Fisher
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3538607
    • Patent number 3,538,607
    • Issue date Nov 10, 1970
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3495334
    • Patent number 3,495,334
    • Issue date Feb 17, 1970
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3451278
    • Patent number 3,451,278
    • Issue date Jun 24, 1969
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3323213
    • Patent number 3,323,213
    • Issue date Jun 6, 1967
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3315265
    • Patent number 3,315,265
    • Issue date Apr 18, 1967
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3298104
    • Patent number 3,298,104
    • Issue date Jan 17, 1967
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3230624
    • Patent number 3,230,624
    • Issue date Jan 25, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3183593
    • Patent number 3,183,593
    • Issue date May 18, 1965
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2855678
    • Patent number 2,855,678
    • Issue date Oct 14, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1924405
    • Patent number 1,924,405
    • Issue date Aug 29, 1933
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    DRAWING DEVICE FOR CREATING MANDALA
    • Publication number 20120210587
    • Publication date Aug 23, 2012
    • Mette Østberg
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    DRAWING APPARATUS
    • Publication number 20090139099
    • Publication date Jun 4, 2009
    • Casey William Norman
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES