USD247502SExpiredUtility
Coin and number teaching aid
Individually held — no corporate assignee on recordPriority: Apr 15, 1976Filed: Apr 15, 1976Granted: Mar 14, 1978
Est. expiryApr 15, 1996(expired)· nominal 20-yr term from priority
Inventors:Ronald Hanson
34
PatentIndex Score
3
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a coin and number teaching aid, as shown and described.
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