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stanton: spun concrete lighting standards
Published in: Public Lighting Engineer No. 44, Volume 12, January-March 1947
Published in: Public Lighting Engineer No. 45, Volume 12, April-June 1947
Published in: Public Lighting Engineer No. 46, Volume 12, July-September 1947
Published in: Public Lighting Engineer No. 47, Volume 12, Special Conference Issue, November 1947
Published in: Public Lighting Engineer No. 48, Volume 12, October-December 1947
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