Autonomous floor-cleaning apparatus
Description
Claims
The ornamental design for an autonomous floor-cleaning apparatus, as shown and described.
Referenced Cited
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Patent History
Patent number: D876035
Type: Grant
Filed: Oct 17, 2017
Date of Patent: Feb 18, 2020
Inventor: Hongli Song (Beijing)
Primary Examiner: Michelle E. Wilson
Application Number: 29/622,491
Type: Grant
Filed: Oct 17, 2017
Date of Patent: Feb 18, 2020
Inventor: Hongli Song (Beijing)
Primary Examiner: Michelle E. Wilson
Application Number: 29/622,491
Classifications
Current U.S. Class:
Vacuum (D32/21)