Learning screen

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Description

FIG. 1 is a top plan view of the learning screen showing my new design;

FIG. 2 is a front view in elevation of the learning screen of FIG. 1;

FIG. 3 is a side view in elevation of the learning screen of FIG. 2 as seen from the right hand side of FIG. 2;

FIG. 4 is a bottom plan view of the learning screen of FIG. 2; and

FIG. 5 is a back view in elevation of the learning screen of FIG. 2.

Referenced Cited
U.S. Patent Documents
D238170 December 1975 Schmidt
2927381 March 1960 Renner
3157955 November 1964 Pfeiffer
Patent History
Patent number: D255368
Type: Grant
Filed: May 19, 1977
Date of Patent: Jun 10, 1980
Inventor: Dorothy L. Boyd (Chicago, IL)
Primary Examiner: Melvin B. Feifer
Application Number: 5/798,595
Classifications
Current U.S. Class: Sensory Feedback, E.g., Audio-visual Teaching Machine (D19/60)
International Classification: D1907;