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Computer & hardware
Pixel
Icon set 32 px
Blackboard, teach
DarkSlateGray
32x32
WooCons #1
Board, chalkboard, school
DimGray
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Cartoon
Oxe Set
teach, school, Black board
64x64
Family & home
3D
Old school by Babasse
school, teaching, teach
128x128
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Desktop apps
Free Applications Icons
table, document, ttable
Gainsboro
24x24
UI
Crystal Clear
tutorials, Black board, table
DarkSeaGreen