A combine harvester is a machine that combines the tasks of reaping, threshing, and winnowing grain crops. The first combine harvester was invented by Hiram Moore in 1834. The modern combine harvester was invented in the United States by Cyrus McCormick in 1844. Today, combine harvesters are used all over the world to harvest grain crops. The Osaka Mini Combine Harvester is a compact and lightweight machine that is perfect for small farms or gardens. This mini harvester is capable of harvesting wheat, barley, oats, and rye. The Osaka Mini Combine Harvester is easy to operate and comes with a user manual. This machine is also easy to maintain and comes with a one-year warranty.