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First vehicle with gears was made.
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the earliest description of gears was written by Aristotle
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they used gears in water, wheels, and clocks
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The first form of rotating cutters were used.
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The first writings about gears that were not describing them.
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The Pftar company in Germany invented the first NC gear hobbing machine.
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An English inventor, Joseph Whitworth, patented the first gear hobbing process.
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Herman Pfauter of Germany invented the first gear hobbing machine.
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The full six axis hobbing machine was used.
