Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Dae Young Ryu0
Date of Patent
September 10, 2024
0Patent Application Number
176172220
Date Filed
December 11, 2019
0Patent Citations
Patent Primary Examiner
Patent abstract
Proposed is a device for supplying emergency power to a digital door lock, which supplies emergency power by switching a connection method of a battery holder provided in the digital door lock from parallel to series or series to parallel by rotating a door lock opening/closing means.
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