Portable calculator
Latest Ing. C. Olivetti & C., S.p.A. Patents:
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
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
