LIFTING JACK FOR AUTOMOTIVE
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United States of America Patent
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Issued Date -
May 2, 2019
app pub date -
Dec 21, 2017
filing date -
Dec 21, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A lifting jack for automotive may include a base; a pair of lower arms of which one end portion is hingedly engaged with both sides of the base; a stand having a stand groove; a pair of upper arms of which one end portion is hingedly engaged with both sides of the stand and the other end portion is hinge is hingedly engaged with the other end portion of the pair of lower arms; a fix bracket hingedly engaged with the other end portion of the lower arm and the other end portion of the upper arm; a hollow screw rod penetrating and being inserted into the fix bracket and screw threads are provided on an external circumference; a connection shaft inserted into an internal circumference of the screw rod; and a key inserted into the screw rod through the fix bracket.
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