FullOfBallooons to 100 Years Ago@lemmy.worldEnglish · 1 year ago[December 18, 1923] farmer James Cummings and draftsman J. Earl McLeod filed U.S. patent #1,522,378 for an "Attachment for Tractors". This machine/attachment combo would later be called a "bulldozer"patents.google.comexternal-linkmessage-square0fedilinkarrow-up110arrow-down10
arrow-up110arrow-down1external-link[December 18, 1923] farmer James Cummings and draftsman J. Earl McLeod filed U.S. patent #1,522,378 for an "Attachment for Tractors". This machine/attachment combo would later be called a "bulldozer"patents.google.comFullOfBallooons to 100 Years Ago@lemmy.worldEnglish · 1 year agomessage-square0fedilink
