View details and encodings for Unicode character U+298B Left Square Bracket With Underbar, located in the Miscellaneous Mathematical Symbols-B block and Open Punctuation category. This character was released in 2002 under Unicode version 3.2.
⦋⦋⦋U+298B;10635\00298B\u298B\x{298B}\u{298B}u'\u298B'