| |
 |
|
Class Information
Number: 434/90
Name: Education and demonstration > Visual art or craft, artistic adornment, or color training or demonstration > Drawing > Grid included in drawing aid or scene viewer
Description: Subject matter relating to a means for facilitating creation of a drawing or a device through which a scene or object to be drawn is viewed, the means or device including a network of lines, usually to aid in proportioning the drawing.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7500755 |
Display apparatus and image processing system |
Mar. 10, 2009 |
| 6579099 |
Freehand drawing training and guiding device |
Jun. 17, 2003 |
| 6568938 |
Drawing aid |
May. 27, 2003 |
| 5698297 |
Method of applying guide markings to writing surfaces |
Dec. 16, 1997 |
| 5263862 |
Method of making a needlework graph |
Nov. 23, 1993 |
| 5197886 |
Process and display with moveable images |
Mar. 30, 1993 |
| 5088814 |
Drawing production aide |
Feb. 18, 1992 |
| 4973254 |
Educational apparatus |
Nov. 27, 1990 |
| 4865547 |
Sketching device |
Sep. 12, 1989 |
| 4798537 |
Movable grid drawing frame |
Jan. 17, 1989 |
| 4689017 |
Drawings aid for making drawings in perspective |
Aug. 25, 1987 |
| 4498238 |
Transparent perspective tracing board |
Feb. 12, 1985 |
| 4451519 |
Drawing material backing for making technical and diagrammatic drawings |
May. 29, 1984 |
| 4379364 |
Artist's freehand sketching device |
Apr. 12, 1983 |
| 4330951 |
Visualizer display device |
May. 25, 1982 |
| 4259784 |
Magnified graphical copier |
Apr. 7, 1981 |
| 4178709 |
Machine for use in pictorial drafting |
Dec. 18, 1979 |
| 4001941 |
Graphic reproduction apparatus |
Jan. 11, 1977 |
|
|
|
