skos:altLabel | - quad
- 20 mm
- 20mm anti-aircraft guns
- AA guns
- ''Flakvierling''
- 2 cm (0.8 in) AA guns
- 2 cm FLAK 30
- 2 cm FlaK 30
- 2 cm Flak
- 2 cm Flak 30
- 2 cm Flakvierling 38
- 2 cm guns
- 2.0-cm Flak C / 30 automatic cannons
- 20 ITK 30 BSW
- 20 ITK 38 BSW
- 20 mm FlaK 30
- 20 mm FlaK autocannon
- 20 mm Flak gun
- 20 mm Gustloff
- 20mm Flakvierling
- 2cm Flak 30
- 2cm self-propelled
- 2 cm Flak 30, Flak 38 and Flakvierling 38#2,0cm Flakvierling 38
- C/30
- FlaK 38
- Flak 38
- Flak anti-aircraft guns
- Flakvierling 38
- MG C/30L
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