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US D428,128 SGranted
Conical filter
AssigneeDonaldson Company, Inc.
InventorsGary R. Gillingham, Wayne M. Wagner, Joseph C. Tokar, Daniel T. Risch, Jim C. Rothman, Steven A. Carter
Life of this patent
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Abstract
The abstract isn’t available for this document.
Claims1
The ornamental design for a conical filter, as shown and described.