Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Design Patent
2000-08-25
2001-10-09
Lichtenstein, Lisa (Department: 2911)
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Air treatment
Design Patent
active
D0449100
CLAIM:
The ornamental design for an HVAC filter, as shown and described.
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Pitzen James F.
Sundet Douglas C.
3M Innovative Properties Company
Lichtenstein Lisa
Patchett David B.
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