USD253115SExpiredUtility

Metric converter slide rule

Assignee: HASBRO INDUSTRIES INCPriority: Dec 5, 1977Filed: Dec 5, 1977Granted: Oct 9, 1979

Est. expiryDec 5, 1997(expired)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

The ornamental design for a metric converter slide rule, substantially as shown and described.

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