Heart guards for policeman are bullet-proof

Title (Dublin Core): Heart guards for policeman are bullet-proof
Subject (Dublin Core): en Technology; en Personal protection (armors)
Article Title and/or Image Caption (Dublin Core): Heart guards for policeman are bullet-proof
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): 1931
Date Issued (Dublin Core): 1931-12
Is Part Of (Dublin Core): Popular Mechanics, v. 56, n. 6, 1931
pages (Bibliographic Ontology): 926
Rights (Dublin Core): Public domain
Source (Dublin Core): Google Books
Archived by (Dublin Core): Alessandro Barcaro; Marco Bortolami (editor)
Spatial Coverage (Dublin Core): Chicago