Extension for a heating duct

Details Extension for a heating duct Extension for a heating duct

2001-11-07

2003-03-18

Zarfas, Louis S. (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Design Patent

active

D0471972

CLAIM:
The ornamental design for an extension for a heating duct, as shown and described.

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