USD277865SExpiredUtility

Drilling machine

45
Assignee: CHEN RUEY ZONPriority: Sep 14, 1982Filed: Sep 14, 1982Granted: Mar 5, 1985
Est. expirySep 14, 2002(expired)· nominal 20-yr term from priority
Inventors:Ruey-Zon Chen
45
PatentIndex Score
3
Cited by
5
References
1
Claims

Claims

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

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