# Madsen 20 mm anti-aircraft cannon

> type of autocannon

**Wikidata**: [Q4994130](https://www.wikidata.org/wiki/Q4994130)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Madsen_20_mm_cannon)  
**Source**: https://4ort.xyz/entity/madsen-20-mm-anti-aircraft-cannon