Biodegradable knife
Claims
The ornamental design for a biodegradable knife, as shown and described.
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Type: Grant
Filed: Mar 11, 2021
Date of Patent: Sep 6, 2022
Inventor: Zhi-Cong Kong (Foshan)
Primary Examiner: Joseph Kukella
Assistant Examiner: Darryl J Dardenne
Application Number: 29/773,705