USD331585SExpiredUtility

Grinding instrument

47
Assignee: WOLFF ROBERTPriority: Jun 6, 1990Filed: Jun 6, 1990Granted: Dec 8, 1992
Est. expiryJun 6, 2010(expired)· nominal 20-yr term from priority
Inventors:Robert A. Wolff
47
PatentIndex Score
5
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2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a grinding instrument, as shown.

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