Talking mathematics trainer

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Description

FIG. 1 is a top, front and left side perspective view of a talking mathematics trainer showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof, in inverted position;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D256028 July 22, 1980 Lawrence et al.
D269356 June 14, 1983 Yoshioka et al.
D273594 April 24, 1984 Lovejoy
Other references
  • Hong Kong Toys, 1982, p. 382, top left, Item 899, Talking Computer.
Patent History
Patent number: D280217
Type: Grant
Filed: Mar 4, 1983
Date of Patent: Aug 20, 1985
Assignee: Nitsubishi Denki Kabushiki Kaisha (Tokyo)
Inventors: Hisashi Tomozawa (Kanagawa), Yoshihiko Nagao (Kanagawa), Shigeru Saito (Kanagawa)
Primary Examiner: Melvin B. Feifer
Law Firm: Sughrue, Mion, Zinn, Macpeak and Seas
Application Number: 6/472,343