Filter cleaning device
The broken lines in the figures depict portions of the filter cleaning device that form no part of the claimed design.
Claims
We claim the ornamental design for a filter cleaning device, as shown and described.
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Type: Grant
Filed: Feb 1, 2019
Date of Patent: Feb 2, 2021
Assignee: TINECO INTELLIGENT TECHNOLOGY CO., LTD. (Suzhou)
Inventor: Mengzhe Xie (Suzhou)
Primary Examiner: John R Yeh
Application Number: 29/679,155