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US D680,641 S1Granted
Filter cover for powered air purifying respirator
Assignee3M Innovative Properties Company
InventorsGary E. Dwyer, Nathan A. Abel, James E. Steffen, John M. Pilgrim
Life of this patent
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Abstract
The abstract isn’t available for this document.
Claims1
The ornamental design for a filter cover for powered air purifying respirator, as shown and described.