Calculator case

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Information

Patent Grant
D257512

References
Source

Patent Number
D257,512
Date Filed
Tuesday, May 16, 1978
46 years ago
Date Issued
Tuesday, November 11, 1980
44 years ago

Inventors
Original Assignees
- LITTON BUSINESS SYSTEMS, INC
Examiners
- Zarfas; Louis S.
Agents
- Muckelroy; William L.

US Classifications
- D18 - Printing and office machinery
Field of Search
- US
- D18 2
- D18 6-8
- 200 5 A
- 364 706-710
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a calculator case, as shown and described.

US Referenced Citations (4)

Number	Name	Date	Kind
D228502	Saito	Oct 1973
D230405	Jinbo	Feb 1974
D243957	Matsuda	Apr 1977
D245107	Mathis	Jul 1977