USD261368SExpiredUtility

Drawing instrument

36
Assignee: MCGRAW HILL INCPriority: Dec 3, 1979Filed: Dec 3, 1979Granted: Oct 20, 1981
Est. expiryDec 3, 1999(expired)· nominal 20-yr term from priority
Inventors:Joseph E. Barreca
36
PatentIndex Score
4
Cited by
1
References
1
Claims

Claims

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

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