LIFTER DEVICE
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United States of America Patent
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Issued Date -
Mar 9, 2023
app pub date -
Aug 23, 2022
filing date -
Sep 3, 2021
priority date (Note) -
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Abstract
A lifter device includes: a pole; a lifting member configured to be guided by the pole; a motor configured to generate power used for ascending and descending of the lifting member; a transmission mechanism configured to transmit the power of the motor to the lifting member; and a preventing member configured to prevent the descending of the lifting member when the power is not transmitted.
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