RETAIL LIGHT-BASED SENSOR-DRIVEN MESSAGING SYSTEMS | Patent Publication Number 20230326272

US 20230326272 A1
Patent Number-
Application Number18333260
Filled DateJun 12, 2023
Priority DateJul 26, 2012
Publication DateOct 12, 2023
Original Assignee
Current Assignee
Inventor/ApplicantsJohn C.S. Koo
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