Mask shell
Latest RZ INDUSTRIES, LLC Patents:
Claims
The ornamental design for a mask shell, as shown and described.
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Type: Grant
Filed: Apr 9, 2019
Date of Patent: Jan 26, 2021
Assignee: RZ INDUSTRIES, LLC (Burnsville, MN)
Inventor: Steve Gordon Torbenson (Lakeville, MN)
Primary Examiner: Elizabeth J Oswecki
Application Number: 29/686,959