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Inventor
TSAI CHAN-TSUNG
TW
2 patents
Patents
2 patents
US10178460B2
Jan 8, 2019
Earphone
MERRY ELECTRONICS SHENZHEN CO LTD
4 citations
67
US11765496B1
Sep 19, 2023
In-ear earphone
MERRY ELECTRONICS SHENZHEN CO LTD
1 citations
58