USD256807SExpiredUtility
Educational clock apparatus
Est. expiryOct 10, 1998(expired)· nominal 20-yr term from priority
Inventors:Diane Mclean
35
PatentIndex Score
5
Cited by
1
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an educational clock apparatus, as shown and described.
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