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:
Jun. 12, 1979
Filed:
Jun. 24, 1977
Applicant:
Inventors:
John Woo, Jr, Huntsville, AL (US);
Yeong-Chung E Lien, Lawrence, KS (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G01C / ; G01B / ;
U.S. Cl.
CPC ...
364562 ; 3312 / ; 33 / ; 356396 ;
Abstract
An instrument for precise measurement and setting of distances has an electronically controlled scale comprising optically active elements, an electronically controlled digital display, and a keyboard. The display and keyboard are mechanically rotatable and connected by electronic circuitry including a microprocessor. The light scale provides optical indicia, including a reference point and a cursor, having positions which are determined by keyboard entries and are displayed numerically.