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:
Feb. 08, 1977
Filed:
Apr. 27, 1973
Applicant:
Inventor:
Charles G Valentine, Stamford, CT (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09B / ;
U.S. Cl.
CPC ...
35 1 / ; 35 13 ;
Abstract
An educational kit for teaching a student the basics of switching and of relay operation is disclosed. The kit includes instructional apparatus, and a simulator board which permits the student to match the names of switches with their correct symbols and receive an immediate response as to the correctness of the answer, and design, assembly, and test relay control circuits.
Valentine, Charles. (1977). Educational device for learning switching (U.S. Patent No. 4006538). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4006538
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile