Power supply unit of electric nail drill
Description
Claims
The ornamental design for a power supply unit of electric nail drill, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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Patent History
Patent number: D972782
Type: Grant
Filed: Jul 3, 2020
Date of Patent: Dec 13, 2022
Inventor: Qing Lu (Shenzhen)
Primary Examiner: Jack Reickel
Assistant Examiner: Michael A Kervin
Application Number: 29/740,424
Type: Grant
Filed: Jul 3, 2020
Date of Patent: Dec 13, 2022
Inventor: Qing Lu (Shenzhen)
Primary Examiner: Jack Reickel
Assistant Examiner: Michael A Kervin
Application Number: 29/740,424
Classifications
Current U.S. Class:
Powered (D28/58);
D8/70