USD285771SExpiredUtility

Dead bolt combination lock

Assignee: PRESTO LOCK INCPriority: Feb 6, 1984Filed: Feb 6, 1984Granted: Sep 23, 1986

Est. expiryFeb 6, 2004(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for a dead bolt combination lock, as shown and described.

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