Contactless Coke SARAH CHEA SARAH CHEA Published May 31, 2021 - 6:29 p.m. Modified May 31, 2021 - 7:33 p.m. An employee demonstrates a digital vending machine during an invention event organized by the Korean Intellectual Property Office and the Korea Invention Promotion Association at the 63 Convention Center in Seoul on Monday. NEWS1 invention day industry business non-contact vending machine korean intellectual property office
![An employee demonstrates a digital vending machine during an invention event organized by the Korean Intellectual Property Office and the Korea Invention Promotion Association at the 63 Convention Center in Seoul on Monday. [NEWS1]](https://image.koreajoongangdaily.com/10361991.webp?imageId=10361991&width=960&height=640&format=jpg)
