Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Treatment
Patent
1998-04-03
1999-09-28
Taylor, Robin V.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Treatment
2301
Patent
active
D04145445
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Exhibit A, Photographs of a prior art filter element (2 pages; 4 photographs).
Coulonvaux Paul R.
Dewit Johan G.
Ivarson Jeffrey J.
Schrage Kevin J.
Ward Dennis E.
Donaldson & Company, Inc.
Taylor Robin V.
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