Calculator casing

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Description

FIG. 1 is a view in perspective of a calculator casing showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top elevational view thereof;

FIG. 4 is a plan view thereof; and

FIG. 5 is a bottom elevational view thereof.

The rear side of the calculator casing is plain.

Referenced Cited
U.S. Patent Documents
D227472 June 1973 Hikawa
D240736 July 1976 Pemberton
Other references
  • Office Products, Mar. 1974, p. 121, Model 855, memory calculator. Office Products, Feb. 1975, p. 54, calculator (bottom).
Patent History
Patent number: D247927
Type: Grant
Filed: Sep 2, 1976
Date of Patent: May 16, 1978
Assignee: Texas Instruments Incorporated (Dallas, TX)
Inventors: Eugene Joseph Sulek (Richardson, TX), William James Lawrence (Dallas, TX)
Primary Examiner: Susan J. Lucas
Attorney: Harold Levine
Application Number: 5/719,770
Classifications
Current U.S. Class: D64/11B
International Classification: D1801;