Combined typewriter and portable calculator

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Description

FIG. 1 is an exploded front perspective view of a combined typewriter and portable calculator showing my new design;

FIG. 2 is a top, right perspective view with the calculator inserted;

FIG. 3 is a rear elevational view.

FIG. 4 is a right side elevational view with the calculator partially withdrawn.

The left side is a mirror image of the right.

Referenced Cited
U.S. Patent Documents
D165550 December 1951 Prouty
D231029 March 1974 Nakanishi
2963137 December 1960 McDonough et al.
3675339 July 1972 Lamarca
Other references
  • Addo Catalog #3405/48, printed 1966, p. 25-Accounting/Typing Machine at left.
Patent History
Patent number: D251932
Type: Grant
Filed: Mar 18, 1977
Date of Patent: May 22, 1979
Inventor: Leon H. Trescott (Brooklyn, NY)
Primary Examiner: Louis S. Zarfas
Attorney: Albert Sperry
Application Number: 5/778,895
Classifications
Current U.S. Class: Combined (1) (D18/2)
International Classification: D1801;