🌐EnglishEnglishFrançaisPolskiفارسی中文日本語EntityQ4310464· pop 7· linked from 611 articlesO-class submarine1916 class of American submarinesConnectionsPhiladelphia Naval ShipyardEntityGeneral Dynamics Electric BoatCompanyCategoriesSource attributionSubmarine classesUnited States O-class submarinesWorld War II submarines of the United StatesWorld War I submarines of the United States