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Class Information
Number: 434/91
Name: Education and demonstration > Visual art or craft, artistic adornment, or color training or demonstration > Drawing > Perspective
Description: Subject matter relating to a drawing which gives the impression that parts thereof are at different distances from the viewer.

Patents under this class:

Patent Number Title Of Patent Date Issued
7513773 Method and system for creating true perspective drawings and drawings created by same Apr. 7, 2009
7491060 Perspective painting aid assembly Feb. 17, 2009
7481654 Artists's grid viewing device and method of use Jan. 27, 2009
6579099 Freehand drawing training and guiding device Jun. 17, 2003
5795154 Anaglyphic drawing device Aug. 18, 1998
5580250 Drawing aid and method for drawing a scene in one place and recreating it in another Dec. 3, 1996
5217376 Drawing aid Jun. 8, 1993
5100325 Apparatus and method for creating perspective drawings Mar. 31, 1992
4689017 Drawings aid for making drawings in perspective Aug. 25, 1987
4500169 Cosmetic and observer line of sight mirror Feb. 19, 1985
4498238 Transparent perspective tracing board Feb. 12, 1985
4407655 Device for simulation of projected image Oct. 4, 1983
4008528 Drawing apparatus Feb. 22, 1977

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