USD280545SExpiredUtility

Heat exchanger

Assignee: NISSHIN CHEMICAL IND CO LTDPriority: Jul 29, 1982Filed: Jul 29, 1982Granted: Sep 10, 1985

Est. expiryJul 29, 2002(expired)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

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

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