USD319693SExpiredUtility

Electric heater

Assignee: CHAO YANG ELECTRIC MFG CO LTDPriority: Apr 14, 1989Filed: Apr 14, 1989Granted: Sep 3, 1991
Est. expiryApr 14, 2009(expired)· nominal 20-yr term from priority
Inventors:Wen T. Lee
38
PatentIndex Score
3
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an electric heater, as shown.

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