Multi-function programmable electronic calculator

- Casio
Description

FIG. 1 is a top plan view of a multi-function programmable electronic calculator showing my new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a left side elevational view;

FIG. 5 is a front elevational view;

FIG. 6 is a bottom plan view;

FIG. 7 is a right, front and top perspective view thereof.

Referenced Cited
U.S. Patent Documents
D243250 February 1, 1977 Hazama
D279107 June 4, 1985 Kikuchi et al.
D279688 July 16, 1985 Kitai et al.
D285805 September 23, 1986 Yubisui et al.
D301895 June 27, 1989 Hayashi
D304930 December 5, 1989 Hongo et al.
D305535 January 16, 1990 Sakaguchi et al.
D309601 July 31, 1990 Sawada et al.
D309749 August 7, 1990 Ido
Patent History
Patent number: D317780
Type: Grant
Filed: Jun 26, 1989
Date of Patent: Jun 25, 1991
Assignee: Casio Computer Co., Ltd. (Tokyo)
Inventor: Shigeki Arai (Higashikurume)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Caron D. Veynar
Law Firm: Frishauf, Holtz, Goodman & Woodward
Application Number: 7/371,401
Classifications