USD250086SExpiredUtility

Chain saw sharpening device

Assignee: GRANBERG ELOFPriority: Nov 15, 1976Filed: Nov 15, 1976Granted: Oct 31, 1978

Est. expiryNov 15, 1996(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for a chain saw sharpening device, as shown.

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