USD314980SExpiredUtility

Electronic learning aid

37
Assignee: VIDEO TECH INDUSTRIES INCPriority: Oct 28, 1987Filed: Apr 15, 1988Granted: Feb 26, 1991
Est. expiryOct 28, 2007(expired)· nominal 20-yr term from priority
Inventors:Donny Leung
37
PatentIndex Score
2
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an electronic learning aid, as shown and described.

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