Water quality indicator

Details Water quality indicator Water quality indicator

2008-05-13

2008-05-13

Davis, Antoine D (Department: 2915)

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Chemical

Design Patent

active

29282721

CLAIM:
We claim an ornamental design for the water quality indicator, as shown and described.

REFERENCES:
patent: D312218 (1990-11-01), Hill
patent: D354921 (1995-01-01), Narayanan
patent: D416821 (1999-11-01), Narayanan
patent: D494079 (2004-08-01), Maeno et al.

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