Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 26, 2018
Patent Application Number
15262015
Date Filed
September 12, 2016
Patent Citations Received
Patent Primary Examiner
Patent abstract
An extendable and retractable arm mechanism includes a first structure group formed by coupling a plurality of first structures and a second structure group formed by coupling a plurality of second structures. Each of the first structures includes lock part for fixing the second structures. When the first structure group and the second structure group extend, the lock part fixes the second structures to the first structures.
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