Although some of them even used farm equipment assembled quickly crop a straight line treatment with a knife and sickle place soon, with rounded sleeves. In these cases, the end element for a large flint blades -.
For land, one with a stick was dug, string or wood and flint stone blades make it possible to deal with hoe basis, and within ballast excavation of irrigation canals. Swing, plows, wood, appeared only later. Treatment of grain (crushed) a provision that the use of terrazzo and spiked roller.
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