USD287978SExpiredUtility

Calculator

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Assignee: IND MAINTENANCE SYSTPriority: Dec 26, 1984Filed: Dec 26, 1984Granted: Jan 27, 1987
Est. expiryDec 26, 2004(expired)· nominal 20-yr term from priority
Inventors:John M. Zatezalo
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PatentIndex Score
1
Cited by
1
References
1
Claims

Claims

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

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