The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 09, 1982
Filed:
May. 20, 1980
Applicant:
Inventor:
Frank R Wurtz, Simi Valley, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43I / ;
U.S. Cl.
CPC ...
33434 ;
Abstract
This invention relates to a perspective drawing machine and more particularly, to a machine which will keep track of a chosen vanishing point. This invention describes a mechanical machine in which the corrected voltage is computed on an external calculator or computer, which when found on the output potentiometer will result in the correct line pointing at the invisable vanishing point.