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Desktop apps
3D
Demo Professional Toolbar Icons
word, parole, Door
Black
64x64
Smooth
Farm-fresh
password, Change
32x32
Glyph
16x16 Free Toolbar Icons
password, Close, secrecy
16x16
Mac OS X style
Access, password, car keys
512x512
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Free Applications Icons
Lock, clef, private
24x24
Log in, private, password
Key, private, login
Protection, secured, private
Unlocked, password, Protection