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US Patent D1009154 Learning card machine

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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

Cheng Zhang0

Date of Patent

December 26, 2023

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Patent Application Number

298777750

Date Filed

June 12, 2023

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Patent Citations

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US Patent D519998 Personal digital assistant

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US Patent D578985 Mobile phone

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US Patent D590793 Mobile phone

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US Patent D648390 Educational card

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US Patent D648722 Electronic reader

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Patent Primary Examiner

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CPC Code

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