Army finds way to keep its messages secret

Title (Dublin Core): Army finds way to keep its messages secret
Subject (Dublin Core): en Technology; en Communication
Article Title and/or Image Caption (Dublin Core): Army finds way to keep its messages secret
Language (Dublin Core): eng
Date Issued (Dublin Core): 1923-08
Is Part Of (Dublin Core): Popular Mechanics, v. 40, n. 2, 1923
pages (Bibliographic Ontology): 248
Rights (Dublin Core): public domain
Source (Dublin Core): google books
References (Dublin Core): United States Army
Archived by (Dublin Core): Marco Bortolami; Marco Bortolami (editor)