Below you may find the In a 1965 case that swung from a district court to an appeals court Donald F. Duncan lost a trademark on the name of this toy which is part of the Jeopardy Archive. In case the question or answer is wrong or something is missing do not hesitate to contact us and we will be glad to help you out. This question was last seen on June 23 2022 Jeopardy! TV Game Show.

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