Refractometer

Details Refractometer Refractometer

2005-11-29

2005-11-29

Davis, Antoine D. (Department: 2915)

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Electrical property

Design Patent

active

D0511980

CLAIM:
The ornamental design for a refractometer, as shown and described.

REFERENCES:
patent: 2383347 (1945-08-01), Silge
patent: 4890916 (1990-01-01), Rainer
patent: D348849 (1994-07-01), Thompson
patent: 5355211 (1994-10-01), Thompson et al.
patent: 5455645 (1995-10-01), Berger et al.
patent: 5563737 (1996-10-01), Kamrat
patent: 6149591 (2000-11-01), Henderson et al.
patent: 6195160 (2001-02-01), Rainer et al.

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