Soil aeration device
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United States of America Patent
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Oct 22, 2013
Grant Date -
Feb 3, 2011
app pub date -
Mar 24, 2009
filing date -
Apr 1, 2008
priority date (Note) -
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Abstract
A movable soil aeration device with a machine frame, a main input shaft for connection to a drive, an output shaft, preferably a crankshaft, coupled to the main input shaft via a reduction gearing, in which the output shaft can move at least one piercing tool up and down, The piercing tool can be pushed into the soil and be pulled therefrom. Different transmission ratios can be set at the reduction gearing.
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