Ultrasonic cutter head
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The broken lines shown in
Claims
The ornamental design for an ultrasonic cutter head, as shown and described.
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Type: Grant
Filed: Jan 31, 2018
Date of Patent: Jun 30, 2020
Assignee: BEIJING SMTP TECHNOLOGY CO., LTD. (Beijing)
Inventor: Cao Qun (Beijing)
Primary Examiner: Samantha Q Lawrence
Application Number: 29/635,591