USD409098SExpiredUtility

Adjustable unit circle board for evaluating trigonometric functions and their signs

Assignee: MICHAELI SHOSHANAPriority: Jul 28, 1997Filed: Jul 28, 1997Granted: May 4, 1999

Est. expiryJul 28, 2017(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for an adjustable unit circle oard for evaluating trigonometric functions and their signs, as shown and described.

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