IEVref:
821-02-58
ID:
Language:
en
Status:
Obsolete
Term:
signal background
Synonym1:
Synonym2:
Synonym3:
Symbol:
Definition:
a plate provided to improve the visibility of a signal
Publication
date
:
1998-04
Source
Replaces:
Internal notes:
CO remarks:
TC/SC remarks:
VT remarks:
Domain1:
Domain2:
Domain3:
Domain4:
Domain5:
a plate provided to improve the visibility of a signal