USD284975SExpiredUtility

Combined desktop abacus and electronic calculator

Assignee: KWOK HERBERTPriority: Aug 7, 1984Filed: Aug 7, 1984Granted: Aug 5, 1986
Est. expiryAug 7, 2004(expired)· nominal 20-yr term from priority
Inventors:Herbert Kwok
40
PatentIndex Score
7
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for combined desktop abacus and electronic calculator, as shown and described.

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