USD317777SExpiredUtility

Electronic calculator

72
Assignee: SHARP KKPriority: Dec 15, 1987Filed: Jun 14, 1988Granted: Jun 25, 1991
Est. expiryDec 15, 2007(expired)· nominal 20-yr term from priority
Inventors:Hiroshi SakaguchiKeiichi Koyama
72
PatentIndex Score
13
Cited by
12
References
1
Claims

Claims

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

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