USD503644SExpiredUtility

Electronic announcement and siren signal generator and control unit

Assignee: STAR HEADLIGHT & LANTERN COPriority: Jul 30, 2003Filed: Jul 30, 2003Granted: Apr 5, 2005

Est. expiryJul 30, 2023(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for an electronic announcement and siren signal generator and control unit, as shown and described.

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