USD318489SExpiredUtility

Combined ruler and writing instrument unit

Assignee: CHO-KAI HUPriority: Nov 17, 1988Filed: Nov 17, 1988Granted: Jul 23, 1991
Est. expiryNov 17, 2008(expired)· nominal 20-yr term from priority
Inventors:Hu Cho-Kai
47
PatentIndex Score
7
Cited by
14
References
1
Claims

Claims

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

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