Refractometer

Details Refractometer Refractometer

2007-11-06

2007-11-06

Davis, Antoine D. (Department: 2915)

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Electrical property

Design Patent

active

29234936

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

REFERENCES:
patent: 4890916 (1990-01-01), Rainer
patent: D348849 (1994-07-01), Thompson
patent: 6195160 (2001-02-01), Rainer et al.
patent: D511980 (2005-11-01), McFarland et al.

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