Undersea Wall to Keep Submarines from Ocean

Titolo: Undersea Wall to Keep Submarines from Ocean
Oggetto: en Imagined technology & prototypes; en Anti-submarines
Article Title and/or Image Caption: Undersea Wall to Keep Submarines from Ocean
Lingua: eng
Copertura temporale: World War I
Data di rilascio: 1918-03
pagine: 346-347
Diritti: Public Domain
Sorgente: babel.hathitrust
Referenzia: Schleswig; Frisian Islands; Heligoland; Wilhelmshaven; Cuxhaven; North Sea; Atlantic Ocean
Archived by: Iacopo Tonon; Alberto Bordignon (Supervisor)
Copertura territoriale: United Kingdom