Wireless digital doorbell
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Claims
The ornamental design for a wireless digital doorbell, as shown and described.
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Type: Grant
Filed: Apr 1, 2021
Date of Patent: Jan 17, 2023
Assignee: KANGTAI ELECTRIC CO., LTD (Yueqing)
Inventor: Yaohua Chen (Yueqing)
Primary Examiner: George D. Kirschbaum
Assistant Examiner: Lillian Windham
Application Number: 29/776,911