USD310530SExpiredUtility

Non-electronic sound amplifier

Assignee: MCGUIRE REXPriority: Sep 21, 1988Filed: Sep 21, 1988Granted: Sep 11, 1990

Est. expirySep 21, 2008(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for a non-electronic sound amplifier, as shown and described.

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