Portable calculator

Description

FIG. 1 is a perspective view taken from the front, top and right of a portable calculator showing my new design;

FIG. 2 is a perspective view taken from rear, top and left thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D218485 August 1970 Grange
D228784 October 1973 Kital
D237216 October 1975 Bellini
Patent History
Patent number: D258451
Type: Grant
Filed: Oct 13, 1978
Date of Patent: Mar 3, 1981
Assignee: Ing. C. Olivetti & C., S.p.A. (Ivrea)
Inventor: Mario Bellini (Milan)
Primary Examiner: Louis S. Zarfas
Attorney: William E. Schuyler, Jr.
Application Number: 5/951,236
Classifications
Current U.S. Class: With Keyboard (D18/7)
International Classification: D1801;