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Mixed
Smooth
Tango Icon Library
Lock, screen, system
Black
512x512
UI
Snipicons
Lock
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Signs & symbols
Super Mono Basic
Unlock, Basic, green
48x48
green, Lock, Basic
Basic, Unlock, yellow
Basic, yellow, Lock
Computer & hardware
Gloss Mac Sampler
search, zoom, Lock
Desktop apps
Windows 7 toolbar full
256x256
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Super Mono Stickers
Unlock, Lock
64x64
Lock, sticker
Shopping & e-commerce
Super Mono Reflection
green, Lock
green, Lock, locked
Lock, red
yellow, Unlock, Lock
Lock, yellow
Lock, Blue, Basic
Project icons
32x32
Sabre
Folder, Lock
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Files & folders
Spirit20
Lock, open
20x20
Bunch of Bluish Icons
Juicy Fruit