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The ornamental design for a refractometer, as shown and described.
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FIG. 1 is a front view of a refractometer showing my new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof; and,
FIG. 7 is a perspective view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Oct 19 2001 | TAKIZAWA, SAKIKO | Canon Kabushiki Kaisha | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012291 | /0108 | |
| Oct 29 2001 | Canon Kabushiki Kaisha | (assignment on the face of the patent) | / |
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