Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Chemical
Design Patent
2003-05-28
2004-04-06
Davis, Antoine Duval (Department: 2913)
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Chemical
Design Patent
active
D0488081
CLAIM:
The ornamental design for a pocket colorimeter, as shown and described.
REFERENCES:
patent: 4787398 (1988-11-01), Garcia et al.
patent: 5083868 (1992-01-01), Anderson
patent: D333992 (1993-03-01), Anderson
patent: D336444 (1993-06-01), Anderson et al.
patent: 5279294 (1994-01-01), Anderson et al.
patent: 6583880 (2003-06-01), Berstis
Davis Antoine Duval
Edmundson Dean P.
Hach Company
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