🌐EnglishEnglishFrançaisPolskiРусский日本語EntityQ5167849· pop 5· linked from 6 articlesCooper vaneAlso known as Dan Cooper switch, D.B. Cooper deviceaircraft stairs security deviceAvailable in 5 languagesFrançais日本語РусскийPolskivia Wikidata sitelinks · CC0ConnectionsInternational Standard Book NumberEntitywedgeEntityCategoriesAircraft doorsLocks (security device)