Planetary gear train of automatic transmission for vehicle
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United States of America Patent
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Feb 21, 2017
Grant Date -
Mar 24, 2016
app pub date -
Dec 3, 2014
filing date -
Sep 23, 2014
priority date (Note) -
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Abstract
A planetary gear train may include an input shaft into which power of an engine may be input, a first planetary gear set including a first sun gear, a first planetary carrier, and a first ring gear, a second planetary gear set including a second sun gear, a second planetary carrier, and a second ring gear, a third planetary gear set including a third sun gear, a third planetary carrier, and a third ring gear, and a fourth planetary gear set including a fourth sun gear, a fourth planetary carrier, and a fourth ring gear, and first to eighth rotational shafts.
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