Flame signal for submarine to avoid collision

Title (Dublin Core): Flame signal for submarine to avoid collision
Subject (Dublin Core): en Technology; en Submarines
Article Title and/or Image Caption (Dublin Core): Flame signal for submarine to avoid collision
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): [–][+]1931
Date Issued (Dublin Core): 1931-09
Is Part Of (Dublin Core): Popular Mechanics, v. 56, n. 3, 1931
pages (Bibliographic Ontology): 375
Rights (Dublin Core): Public domain
Source (Dublin Core): Google Books
Archived by (Dublin Core): Alessandro Barcaro; Marco Bortolami (editor)