USD336864SExpiredUtility

Back-up warning signal

Assignee: DESIGNTECH INT INCPriority: Oct 31, 1991Filed: Oct 31, 1991Granted: Jun 29, 1993

Est. expiryOct 31, 2011(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for back-up warning signal, as shown and described.

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