InventHelp Inventor Develops New Electronic Blackboard (CLR-324) /PRNewswire/ -- "I wanted to create a simple way to provide the function of a blackboard in a digital format," said an inventor, from Bolingbrook, Ill., "so I ... prnewswire.com prnewswire.com / feeds prnewswire-com-news-releases .. prnewswire-com-financial-services / / #news / / 14 days 14d Share
