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:
Jan. 27, 1976
Filed:
Nov. 12, 1973
Applicant:
Inventor:
Hans-Robert Kuhn, Kiel, DT;
Assignee:
Electroacustic GmbH, Kiel, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09F / ;
U.S. Cl.
CPC ...
40 2 / ;
Abstract
A display device having a rectangular area of variable shape and cross-section with a pair of movable line markers defining the horizontal boundaries and another pair of movable line markers defining the vertical boundaries, means for moving each pair of line markers to vary the distance therebetween to obtain the rectangular area of desired shape and cross-section. Simultaneous movement and regulated separation of pairs of line markers may be obtained by rotating elliptical cams connected to the line markers.