Surface of a blank
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In the drawing views, the dash-dot broken line and the even broken line represent unclaimed portions of the surface of a blank and form no part of the claimed design.
Claims
The ornamental design for a surface of a blank, as shown and described.
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Type: Grant
Filed: Dec 17, 2018
Date of Patent: Dec 1, 2020
Assignee: Ivoclar Vivadent AG (Schaan)
Inventor: Peter Steinkeller (Latsch)
Primary Examiner: Wan Laymon
Application Number: 29/673,626