ETB

from The Free On-line Dictionary of Computing (8 July 2008)

End Transmission Block
ETB

   <character> (ETB) The {mnemonic} for {ASCII} character 23.

   (1996-06-28)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

ETB
       Elektronisches TelefonBuch (T-Online)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

ETB
       End of Transmission Blank / Block

[email protected]