Secret voice for war or peace

Title (Dublin Core): Secret voice for war or peace
Subject (Dublin Core): en Technology; en Communication
Article Title and/or Image Caption (Dublin Core): Title: Secret voice for war or peace; Image caption: Drawing of possible war time scene
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): 1933
Date Issued (Dublin Core): 1933-08
Is Part Of (Dublin Core): Popular Mechanics, v. 60, n. 2, 1933
pages (Bibliographic Ontology): 194-197
Rights (Dublin Core): Public domain
Source (Dublin Core): Google Books
References (Dublin Core): Westinghouse Electric Corporation; Bell Telephone Company
Archived by (Dublin Core): Alessandro Barcaro; Marco Bortolami (editor)