Teaching machine

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Description

FIG. 1 is a front perspective view of the teaching machine showing our design;

FIG. 2 is a front elevational view of the teaching machine;

FIG. 3 is a rear elevational view of the teaching machine;

FIG. 4 is a right-side elevational view of the teaching machine;

FIG. 5 is a left-side elevational view of the teaching machine; and

FIG. 6 is a top plan view of the teaching machine.

Referenced Cited
U.S. Patent Documents
D234466 March 1975 Kitai
D240832 August 1976 Beitler et al.
D247002 January 17, 1978 Katoh
D258654 March 24, 1981 Levy
3739069 June 1973 Sandmeier
Other references
  • Playthings, Feb. 1977, p. 109, Sesame Street Electronic Blackboard. Walt Disney Character Catalog, Oct. 22, 1947, "Mickey Mouse", p. 96.
Patent History
Patent number: D276733
Type: Grant
Filed: Jan 13, 1981
Date of Patent: Dec 11, 1984
Assignee: North American Foreign Trading Corporation (New York, NY)
Inventors: Dietmar Nagel (Chester, NJ), Andrew Lowinger (Brooklyn, NY), Peter Roegner (Far Hills, NJ)
Primary Examiner: Bruce W. Dunkins
Law Firm: Antonelli, Terry & Wands
Application Number: 6/224,750