USD337602SExpiredUtility

Calculator

53
Assignee: DATA ELECTROCRAFT CORPPriority: May 27, 1992Filed: May 27, 1992Granted: Jul 20, 1993
Est. expiryMay 27, 2012(expired)· nominal 20-yr term from priority
Inventors:Paul Chen
53
PatentIndex Score
7
Cited by
6
References
1
Claims

Claims

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

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