USD658688SActiveUtility

Punching machine

44
Assignee: CHIANG CHOU-CHIHPriority: Sep 12, 2011Filed: Sep 12, 2011Granted: May 1, 2012
Est. expirySep 12, 2031(~5.1 yrs left)· nominal 20-yr term from priority
Inventors:Chou-Chih Chiang
44
PatentIndex Score
5
Cited by
9
References
1
Claims

Claims

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

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