#OTD #TDIH #June27, 1939 #FrederickMcKinleyJones invents #TicketVendingMachines for #MovieTheaters. #GreatInventions #Inventions #TVMs #AfricanAmericans #BlackAmericans #BlackPeople #Blacks #Refrigeration #MobileRefrigeration #BlackSky
en.wikipedia.org/wiki/Frederi...