Air flow controller for an air vent

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified

Design Patent

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Design Patent

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29233642

CLAIM:
The ornamental design for an air flow controller for an air vent, as shown and described.

REFERENCES:
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patent: 6520212 (2003-02-01), Blivet
patent: 6527301 (2003-03-01), Bathey
patent: 6887147 (2005-05-01), Thomassin et al.

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