USD664167SActiveUtility

Head portion of rock drill

Assignee: LAMPE RAINERPriority: Aug 2, 2010Filed: Jan 31, 2011Granted: Jul 24, 2012

Est. expiryAug 2, 2030(~4 yrs left)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for a head portion of a rock drill, as shown and described.

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