File:Equal symbol.svg - Wikimedia Commons

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File:BJT PNP symbol.svg - Wikipedia

File:White equals sign on black rounded square.svg - Wikipedia

File:A Transfeminist-Symbol black-and-white.svg - Wikimedia Commons

File:Equals sign with infinity below.svg - Wikimedia Commons

File:Direct current symbol.svg - Wikipedia

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Equal Sign Wins Symbol of the Year Vote in 2013

File:Eo circle blue number-1.svg - Wikimedia Commons

File:Symbol Electromechanical drive (two coils in same direction).svg - Wikimedia Commons