who invented the combine harvester
answer 2. The combine harvester, or simply combine, is a machine that harvests grain crops. The first harvesting machines were devised by Patrick Bell in Scotland and Cyrus Hall McCormick in the United States. McCormick invented his first reaper at the age of 22 and tested it in a neighbor's field in 1831.he first harvesting machines were devised by Patrick Bell in Scotland and Cyrus Hall McCormick in the United States. McCormick invented his first reaper at the age of 22 and tested it in a neighbor's field in 1831.