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A platform for research: civil engineering, architecture and urbanism
Investigations of permissible electric mine lamps, 1930-40
Last list of permissible electric mine lamps was issued as Report of Investigations 3304 in June 1935, as supplement to Bul 332 (1930); this bulletin presents test requirements and procedure relative to permissible electric mine lamps and describes briefly the lamps, giving tabulated details of each. (15¢)
Investigations of permissible electric mine lamps, 1930-40
Last list of permissible electric mine lamps was issued as Report of Investigations 3304 in June 1935, as supplement to Bul 332 (1930); this bulletin presents test requirements and procedure relative to permissible electric mine lamps and describes briefly the lamps, giving tabulated details of each. (15¢)
Investigations of permissible electric mine lamps, 1930-40
U S Bur Mines -- Bul
Ilsley, L.C. (author) / Hooker, A.B. (author) / Roadstrum, W.H. (author)
1942
50 pages
Bibliography
Report
English
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