The improved permissible flame safety lamps

Author: Ilsley, L. C.
Additional Authors: Coggeshall, E. J., Hooker, A. B.
Year: 1936
Document Type: BMRA
Issuing Agency: United States Bureau of Mines,
SUDOC: I 28.23:3312
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number: 3312
Subject: Safety lamps
Link: https://hdl.handle.net/2027/mdp.39015078537183

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