against
alphabet
art
blue
business
button
color
computer
contour
convention
copyright
data
duplication
icon
identification
illustration
intellectual
isolated
job
label
legal
letter
license
limit
limitation
line
linear
lineart
management
mark
music
musical
outline
phonogram
producers
property
protection
r
register
registered
restrict
sign
symbol
term
text
trade
trademark
web
work