USD491961SExpiredUtility

Rotary grinding stone

47
Assignee: SHINANO ELECTRIC REFINING CO LPriority: Apr 17, 2003Filed: May 12, 2003Granted: Jun 22, 2004
Est. expiryApr 17, 2023(expired)· nominal 20-yr term from priority
Inventors:Kenichi Kazama
47
PatentIndex Score
6
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a rotary grinding stone, as shown and described.

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