Vision assessment chart
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The broken lines show environment and form no part of the claimed design. Color is claimed in
Claims
The ornamental design for a vision assessment chart, as shown and described.
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Type: Grant
Filed: Apr 16, 2019
Date of Patent: Apr 12, 2022
Assignee: Henry Ford Health System (Detroit, MI)
Inventors: Fuxiang Zhang (Luna Pier, MI), Charles Su (Victoria)
Primary Examiner: Lauren D McVey
Assistant Examiner: Justin A Johnson
Application Number: 29/687,824