Intrinsically safe 5-V, 4-A rechargeable power supply
By: by John J. Sammarco.
Series: Information circular ;; 9223; Information circular (United States. Bureau of Mines) ;; 9223.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1989
Place of publication: Pgh. [Pittsburgh], PA
Language: eng
Number of pages: 11
Subjects: Electricity in mining -- Safety measures.; Storage batteries.
Notes: Includes bibliographical references.