USD327024SExpiredUtility

Refractometer

Assignee: ESSILOR INTPriority: Dec 29, 1989Filed: Jun 22, 1990Granted: Jun 16, 1992

Est. expiryDec 29, 2009(expired)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

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

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