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40mm機関砲
Wikipedia definition
1. Bofors 40 mmThe Bofors 40 mm gun is an anti-aircraft autocannon designed by the Swedish defence firm Bofors Defence. It was one of the most popular medium-weight anti-aircraft systems during World War II, used by most of the western Allies as well as by the Axis powers. The cannon remains in service as of 2012, making it one of the longest-serving artillery pieces of all time. It is often referred to simply as the Bofors gun.
Read “Bofors 40 mm” on English Wikipedia
Read “ボフォース 40mm機関砲” on Japanese Wikipedia
Read “Bofors 40 mm” on DBpedia

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