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US Patent D1019593 Speaker

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Is a

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Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Jianfeng Lv0

Yong Cao0

Date of Patent

March 26, 2024

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Patent Application Number

298273350

Date Filed

February 18, 2022

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Patent Citations

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Patent Primary Examiner

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CPC Code

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