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Inventor
COBB JEFFREY B
US
2 patents
Patents
2 patents
US5481816A
Jan 9, 1996
Message sign with changeable display
APCO GRAPHICS INC
15 citations
61
US9633583B2
Apr 25, 2017
Low profile, self-aligning customizable sign and method of displaying customizable information
APCO GRAPHICS INC
0 citations
33