Operation interface
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While
The broken lines in the drawings depict unclaimed environmental subject matter. The features shown in broken lines form no part of the claimed design.
Claims
The ornamental design for an “operation interface,” as shown and described.
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Type: Grant
Filed: Sep 29, 2014
Date of Patent: May 2, 2017
Assignee: Dürr Ecoclean GmbH (Filderstadt)
Inventor: Stefan Grobe (Dettenhausen)
Primary Examiner: Patricia Palasik
Application Number: 29/503,751