Look up: AT-4

1. At-4
   The AT-4 is a Swedish lightweight multi-purpose weapon by Bofors. It is a single shot anti-tank rocket with iron sights guidance and a range of about 300 meters, capable of penetrating more than 400 mm of armour. The AT-4 (Spigot) is a Russian 120 mm anti-tank guided missile introduced during the 19...
   Found on http://www.probertencyclopaedia.com/brow
   
   
2. At104
   The AT104 was a British 4x2 wheeled internal security vehicle produced in 1972 and supplied to the Dutch police and Royal Brunei Malaya Regiment. The AT104 was powered by a 6-cylinder petrol or diesel engine providing a top speed of 80 kmh and a range of 640 km. The AT104 carried a crew of two plus ...
   Found on http://www.probertencyclopaedia.com/brow
   
   
3. AT4
   Series of disposable light anti-armour weapons [SE]
   Found on http://www.jedsite.info/index.html
   
   
4. ATA-4
   (storage) /ul'tr* D M A/ (Or 'Ultra DMA', 'UDMA', 'Ultra-ATA', 'Ultra-DMA/33') A development of the Advanced Technology Attachment specifications which gives nearly twice the maximum transfer speed of the ATA-3 standard (PIO Mode 4). ATA-4 Extensions Ultra DMA/33 Synchronous DMA Mode maximum burst t...
   Found on http://foldoc.org/ATA-4
   
   
5. ATN-224
   A substance being studied in the treatment of cancer. It may prevent the growth of new blood vessels that tumors need to grow. ATN-224 also blocks enzymes that cells need to divide and grow, and it may kill cancer cells. It is a type of antiangiogenesis agent and a type of superoxide dismutase inhibitor. Also called SOD1 inhibitor ATN-224.
   Found on http://www.cancer.gov/dictionary?expand=