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US Patent D947339 Air purifier

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Is a

Patent

Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

D9473390

Patent Inventor Names

Hua Yu0

Date of Patent

March 29, 2022

Patent Application Number

297514650

Date Filed

September 22, 2020

Patent Citations Received

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US Patent D987800 Air purifier

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US Patent D1017790 Air filtration apparatus

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US Patent D987801 Air purifier

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US Patent D998116 Space heater

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US Patent D994102 Air purifier

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US Patent D989258 Space heater

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