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US D346,753 SGranted
PH and concentration meter
AssigneeOrion Research, Inc.
InventorsJames Barbookles, Jr., Jeffrey S. Cohen, Laura Brockway, Thomas Paquette, Paul Sydlowski
Life of this patent
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Abstract
The abstract isn’t available for this document.
Claims1
The ornamental design for a pH and concentration meter, as shown and described.