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Education & science
Handdrawn
Brainy Icons Free — 36 Science and Education Icons
science, Atom, nuclear
Black
64x64
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Mixed
Glyph
WPZOOM Developer Icon Set
sign
512x512
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Gaming & gambling
Photorealistic
48x48 Free Object Icons
Mobile, Finance, touchscreen
48x48
no, Closed, stop
Firebrick
cancel, play, sign
Business & finance
48x48 Free Time Icons
Abort, exclamation, Up
Tomato
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24x24 Free Application Icons
Minus, Closed, glossy
Red
24x24
stop, Abort, Block
forbidden, remove, Minus
Error, sign, Blocked
stop, sign
stop, no access, remove
Network & communications
Pixel
16x16 Free Application Icons
prohibition, danger, reject
16x16
danger, wind, Gesture
Salmon
Minus, sign, forbid
Outline
iOS 7 icons
recycle, sign
UI
Smooth
Snipicons
sign, exclamation
DodgerBlue
sign, Info
Minus, sign
ok, sign
plus, sign
sign, question
sign, remove
