USD449341SExpiredUtility

Quiz machine

33
Priority: Oct 4, 2000Filed: Oct 4, 2000Granted: Oct 16, 2001
Est. expiryOct 4, 2020(expired)· nominal 20-yr term from priority
Inventors:Sam Tsai
33
PatentIndex Score
1
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a quiz machine, as shown and described.

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