Electronic calculator with telephone dialer

- Casio
Description

FIG. 1 is a top plan view of an electronic calculator with telephone dialer 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; and

FIG. 7 is a perspective view thereof with front cover closed.

Referenced Cited
U.S. Patent Documents
D254435 March 11, 1980 Ferron
D258892 April 14, 1981 Ohie et al.
D308536 June 12, 1990 Suzuki
4672685 June 9, 1987 Phillips et al.
Other references
  • IBM Technical Disclosure Bulletin; Wallet Terminal Keyboard with Acoustic Coupler by M. F. Davis and R. H. Koepf; vol. 10, No. 3, Aug. 1967. Hong Kong Enterprise; 9/1984; p. 96.
Patent History
Patent number: D317921
Type: Grant
Filed: Jun 26, 1989
Date of Patent: Jul 2, 1991
Assignee: Casio Computer Co., Ltd. (Tokyo)
Inventor: Toru Suzuki (Fussa)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Caron D. Veynar
Law Firm: Frishauf, Holtz, Goodman & Woodward
Application Number: 7/371,413
Classifications