SYMBOL FOR NULL
SYMBOL FOR ENQUIRY
SYMBOL FOR ACKNOWLEDGE
SYMBOL FOR HORIZONTAL TABULATION
SYMBOL FOR FORM FEED
SYMBOL FOR DEVICE CONTROL ONE
SYMBOL FOR NEGATIVE ACKNOWLEDGE
SYMBOL FOR END OF TRANSMISSION BLOCK
SYMBOL FOR CANCEL
SYMBOL FOR GROUP SEPARATOR
SYMBOL FOR RECORD SEPARATOR
SYMBOL FOR UNIT SEPARATOR
OPEN BOX
SYMBOL FOR NEWLINE