USD299524SExpiredUtility

Combined air cooler and heater

Assignee: DIN-HER CHENPriority: Sep 12, 1986Filed: Sep 12, 1986Granted: Jan 24, 1989

Est. expirySep 12, 2006(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for combined air cooler and heater, as shown and described.

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