USD306311SExpiredUtility

Electronic calculator

33
Assignee: MATSUSHITA ELECTRIC INDUSTRIAL CO LTDPriority: Nov 20, 1986Filed: Feb 6, 1987Granted: Feb 27, 1990
Est. expiryNov 20, 2006(expired)· nominal 20-yr term from priority
Inventors:Tetsuo SugiKazuyoshi Kojima
33
PatentIndex Score
2
Cited by
5
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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