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Class Information
Number: 33/1K
Name: Geometrical instruments > Miscellaneous > Copy aids and perspective drawing
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7401410 |
Viewfinder for artists |
Jul. 22, 2008 |
| 7389589 |
Composition transfer proportional drawing grids |
Jun. 24, 2008 |
| 7310884 |
Adjustable golden section indicator and method for loci transfer |
Dec. 25, 2007 |
| 7204028 |
Perspective view drafting device |
Apr. 17, 2007 |
| 6810591 |
Drawing aid device |
Nov. 2, 2004 |
| 6785972 |
Method and system for recording a viewing point |
Sep. 7, 2004 |
| 6769190 |
Adjustable viewing frame |
Aug. 3, 2004 |
| 6751878 |
APPARATUS AND METHOD FOR CREATING A DRAWING OF A THREE-DIMENSIONAL OBJECT MANUALLY AND /OR ELECTRONICALLY BY VIEWING THE OBJECT THROUGH A TRANSPARENT WINDOW PANE AND TRACING THE OBJECT ON THE |
Jun. 22, 2004 |
| 6579099 |
Freehand drawing training and guiding device |
Jun. 17, 2003 |
| 6487784 |
Portable drawing board for art students |
Dec. 3, 2002 |
| 6453573 |
Rubber stamp positioning device |
Sep. 24, 2002 |
| 6357130 |
Drafting template for preparing axonometric drawings |
Mar. 19, 2002 |
| 6154968 |
Compact viewing frame for artists |
Dec. 5, 2000 |
| 5799402 |
Portable device for removably positioning and resetting vanishing points of perspective drawings |
Sep. 1, 1998 |
| 5718053 |
Stationary perspective device |
Feb. 17, 1998 |
| 5673490 |
Alignment mechanism |
Oct. 7, 1997 |
| 5653035 |
Pad device having a removable rule |
Aug. 5, 1997 |
| 5636461 |
Visual aid device for stretching, aligning, and mounting needlepoint fabric |
Jun. 10, 1997 |
| 5632094 |
Articulated drafting device for drawing perspectives |
May. 27, 1997 |
| 5492472 |
Apparatus for teaching mechanical drawing skills |
Feb. 20, 1996 |
| 5099582 |
Variable perspective viewing device |
Mar. 31, 1992 |
| 5088814 |
Drawing production aide |
Feb. 18, 1992 |
| 5016357 |
Artwork analysis device |
May. 21, 1991 |
| 4987685 |
Foldable accounting guide |
Jan. 29, 1991 |
| 4972590 |
Knitting guide |
Nov. 27, 1990 |
| 4918822 |
Perspective drafting apparatus |
Apr. 24, 1990 |
| 4899454 |
Perspective drawing machine |
Feb. 13, 1990 |
| 4827621 |
Measurement tape for sizing carpet |
May. 9, 1989 |
| 4823476 |
Method and apparatus for measuring physical attributes of a human body |
Apr. 25, 1989 |
| 4820163 |
Artist's aid |
Apr. 11, 1989 |
| 4730398 |
Preliminary recording activity by guide and point |
Mar. 15, 1988 |
| 4689017 |
Drawings aid for making drawings in perspective |
Aug. 25, 1987 |
| 4688334 |
Apparatus for making perspective drawings |
Aug. 25, 1987 |
| 4672747 |
Magnetic device for aiding scaled reproduction of pictorial images in needlework |
Jun. 16, 1987 |
| 4601108 |
Spacer device |
Jul. 22, 1986 |
| 4565016 |
Perspective drafting instrument |
Jan. 21, 1986 |
| 4558522 |
Hand guide for painters or draftsmen |
Dec. 17, 1985 |
| 4505041 |
Perspective drawing templates |
Mar. 19, 1985 |
| 4498238 |
Transparent perspective tracing board |
Feb. 12, 1985 |
| 4493152 |
Lettering machine |
Jan. 15, 1985 |
| 4453318 |
Apparatus for producing perspective drawings |
Jun. 12, 1984 |
| 4432140 |
Device for copying panoramic images |
Feb. 21, 1984 |
| 4259784 |
Magnified graphical copier |
Apr. 7, 1981 |
| 4177573 |
Variable angle aperture card |
Dec. 11, 1979 |
| 4168573 |
Copying easel |
Sep. 25, 1979 |
| 4001941 |
Graphic reproduction apparatus |
Jan. 11, 1977 |
| 3988838 |
Artists device |
Nov. 2, 1976 |
| 3939564 |
Adjustable grid line device |
Feb. 24, 1976 |
| 3931501 |
Apparatus and method for optimizing the yield of usable pieces from boards and the like |
Jan. 6, 1976 |
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