USD355487SExpiredUtility

Drill extension for use in oral implantology

Assignee: AB ASTRAPriority: Oct 28, 1992Filed: Apr 28, 1993Granted: Feb 14, 1995

Est. expiryOct 28, 2012(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for a drill extension for use in oral implantology, as shown and described.

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