USD349333SExpiredUtility

Heat recovery unit

Assignee: KING DONALDPriority: Jul 8, 1991Filed: Jul 8, 1991Granted: Aug 2, 1994

Est. expiryJul 8, 2011(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for a heat recovery unit, as shown and described.

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