Dolby logo history

here's all the ones that I can find so here you got a full history of dolby logos I found the history from a lot of other people to but they didn't have all of them on one video and sorry about what happend at the end of the video I forgot to cut out the logo which is not mine but I no body attacks me for that please don't claim the video I will redo this when I get movie maker a bit fixed so yeah