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VOCAL ACOUSTIC ATTENUATION

17/798,147 | U.S. Patent Application

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Filed Aug. 8, 2022

Examiner Suhan Ni

Class 381

Art Group 2691

Patent No. 12,424,191

Case Type Utility

Status Patented Case

Last Updated: 1 day, 20 hours ago

Date	#	Transaction
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VOCAL ACOUSTIC ATTENUATION

17/798,147 | U.S. Patent Application

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