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:
Oct. 11, 1977
Filed:
Mar. 19, 1976
Applicant:
Inventors:
Ichiro Sado, Tokyo, JA;
Juji Kishimoto, Tokyo, JA;
Seiji Saito, Yokohama, JA;
Atsushi Sakurai, Tokyo, JA;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364709 ;
Abstract
In an electronic desk-top calculator, there are provided input means including at least one function key, a plurality of arithmetical operation keys and a plurality of numeric keys, and means for effecting functional operation by depression of the function key, one of the numeric keys and one of said arithmetic operation keys, in such order.