New method of purifying helium provides aid for "ZR-1"

Title (Dublin Core): New method of purifying helium provides aid for "ZR-1"
Subject (Dublin Core): en Technology; en Airplanes and Zeppelins
Article Title and/or Image Caption (Dublin Core): New method of purifying helium provides aid for "ZR-1"
Contributor (Dublin Core): John W. Kean (writer)
Language (Dublin Core): eng
Date Issued (Dublin Core): 1923-06
Is Part Of (Dublin Core): Popular Mechanics, v. 39, n. 6, 1923
pages (Bibliographic Ontology): 826-827
Rights (Dublin Core): public domain
Source (Dublin Core): google books
References (Dublin Core): RoC Bureau of Mines; USS Shenandoah
Archived by (Dublin Core): Marco Bortolami; Marco Bortolami (editor)
Spatial Coverage (Dublin Core): Fort Worth; Lakehurst