USD280217SExpiredUtility

Talking mathematics trainer

81
Assignee: NITSUBISHI DENKI KKPriority: Oct 8, 1982Filed: Mar 4, 1983Granted: Aug 20, 1985
Est. expiryOct 8, 2002(expired)· nominal 20-yr term from priority
Inventors:Hisashi TomozawaYoshihiko NagaoShigeru Saito
81
PatentIndex Score
27
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a talking mathematics trainer, as shown and described.

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