USD392869SExpiredUtility
Knife sharpener
Est. expiryJul 26, 2016(expired)· nominal 20-yr term from priority
Inventors:Udo Rieser
85
PatentIndex Score
29
Cited by
7
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a knife sharpener, as shown and described.
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