Dust drill collector
The broken lines shown in the drawings illustrate environmental structure for the dust drill collector that forms no part of claimed design.
Claims
The ornamental design for a dust drill collector, as shown and described.
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Type: Grant
Filed: Aug 31, 2012
Date of Patent: Dec 17, 2013
Inventor: Chao-Yang Chen (New Taipei)
Primary Examiner: Philip S Hyder
Assistant Examiner: Darlington Ly
Application Number: 29/430,915