Gas mask hose connected to a distant blower

Title (Dublin Core): Gas mask hose connected to a distant blower
Subject (Dublin Core): en Technology; en Personal protection (chemical)
Article Title and/or Image Caption (Dublin Core): Gas mask hose connected to a distant blower
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): [–][+]chemical warfare
Date Issued (Dublin Core): 1922-12
Is Part Of (Dublin Core): Popular Mechanics, v. 38, n. 6, 1922
pages (Bibliographic Ontology): 922
Rights (Dublin Core): public domain
Source (Dublin Core): google books
Archived by (Dublin Core): Marco Bortolami; Marco Bortolami (editor)