Intrinsically safe 5-V, 4-A rechargeable power supply
By: by John J. Sammarco.
Series: Information circular (United States. Bureau of Mines) -- 9223.
Publisher: Dept. of the Interior
Published: 1989
Place of publication: Washington, DC
Language: eng
Number of pages: 11
Subjects: Electricity in mining -- Safety measures; Storage batteries.
Notes:  88607917  t_oclc

Bibliogr.

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