Filter cleaning device
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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