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Hammer drill

Assignee: BOSCH GMBH ROBERTPriority: Nov 29, 2010Filed: May 24, 2011Granted: Feb 26, 2013

Est. expiryNov 29, 2030(~4.4 yrs left)· nominal 20-yr term from priority

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The ornamental design for a hammer drill, as shown and described.

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