Finding U-Boats in the Depths of the Sea

Title (Dublin Core): Finding U-Boats in the Depths of the Sea
Subject (Dublin Core): en Imagined technology & prototypes; en Anti-submarines
Article Title and/or Image Caption (Dublin Core): Finding U-Boats in the Depths of the Sea; Caption: Showing the under-water telescope in action provided the searchlight could be made ton penetrate the depths
Contributor (Dublin Core): Alexander Egenes (inventor)
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): World War I
Date Issued (Dublin Core): 1918-07
Is Part Of (Dublin Core): Popular Science Monthly, v. 93, n. 1, 1918
pages (Bibliographic Ontology): 27
Rights (Dublin Core): Public Domain (Google digitized)
Source (Dublin Core): Google Books
References (Dublin Core): Lower Rochester; Nevada; Atlantic Ocean
Archived by (Dublin Core): Filippo Valle; Alberto Bordignon (Supervisor)