Combined digital clock and calculator

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Description

FIG. 1 is a perspective view of a combined digital clock and calculator showing my new design;

FIG. 2 is a right end view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a perspective view thereof in open position; and

FIG. 6 is a perspective view thereof showing the bottom.

Referenced Cited
U.S. Patent Documents
D252801 September 4, 1979 Usuda
Other references
  • Popular Science, 9/1977, p. 26-calculator at bottom right.
Patent History
Patent number: D258221
Type: Grant
Filed: Dec 18, 1978
Date of Patent: Feb 10, 1981
Assignee: Cassia Electronic Products Limited (Aberdeen)
Inventor: Kenji Shimasaki
Primary Examiner: Louis S. Zarfas
Attorney: Martin Fleit
Application Number: 5/970,114
Classifications
Current U.S. Class: With Keyboard (D18/7); Changeable Exhibitor, E.g., Digital Type (D10/15); With Closure Panel (D10/18)
International Classification: D1801;