USD248595SExpiredUtility

Portable calculating machine

55
Assignee: LITTON BUSINESS SYSTEMS INCPriority: Mar 21, 1977Filed: Mar 21, 1977Granted: Jul 18, 1978
Est. expiryMar 21, 1997(expired)· nominal 20-yr term from priority
Inventors:Myron BeitlerStuart D. Leer
55
PatentIndex Score
6
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a portable calculating machine, as shown and described.

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