Inventor
TSAI SHUEI-JIN
TW4 patents
Patents
4 patentsUS9678846B2Jun 13, 2017
Service data record system, data record method and electronic equipment using the same
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US10628371B1Apr 21, 2020
USB detecting method and USB expansion device using same
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US10007901B2Jun 26, 2018
Service data record system and electronic equipment using the same
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US9881283B2Jan 30, 2018
Service data record system and POS system with the same
FLYTECH TECHNOLOGY CO LTD0 citations38