USD313842SExpiredUtility

Air heater

73
Assignee: Synlix Electrical LtdPriority: Sep 28, 1988Filed: Sep 28, 1988Granted: Jan 15, 1991
Est. expirySep 28, 2008(expired)· nominal 20-yr term from priority
Inventors:Jack Fan
73
PatentIndex Score
18
Cited by
6
References
1
Claims

Claims

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

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