A20
From Free net encyclopedia
A20 may refer to:
- A20 line (addressing line 20), a microprocessor connection
- A20 road, a major road in south-east England
- Quebec Autoroute 20 (A-20), in Canada
- A-20 Havoc, the US Air Force's designation for the Douglas DB-7 aircraft
- A-20, a rejected prototype version of the Soviet T-34 medium tank
- One of the ECO codes for the English Opening in chess