Refractometer

- Canon
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Description

FIG. 1 is a front elevational view of a refractometer showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a perspective view thereof in use position.

Referenced Cited
U.S. Patent Documents
D244483 May 24, 1977 Toth et al.
D253909 January 8, 1980 Armbruster
D285485 September 2, 1986 Kahute
D296004 May 31, 1988 Kahute
Patent History
Patent number: D316144
Type: Grant
Filed: Aug 9, 1988
Date of Patent: Apr 9, 1991
Assignee: Canon Kabushiki Kaisha (Tokyo)
Inventor: Hiroshi Nishimura (Tokyo)
Primary Examiner: Stella Reid
Law Firm: Fitzpatrick, Cella, Harper & Scinto
Application Number: 7/230,114
Classifications
Current U.S. Class: D24/17