https://www.bbc.co.uk/news/technology-45289281
origin - https://www.pipiscrew.com/2018/08/coffee-delivery-drone-patented-by-ibm/ coffee-delivery-drone-patented-by-ibm
https://www.bbc.co.uk/news/technology-45289281
origin - https://www.pipiscrew.com/2018/08/coffee-delivery-drone-patented-by-ibm/ coffee-delivery-drone-patented-by-ibm