Intrinsically safe power supplies for use in coal mines : part - 3 : specification for rechargeable battery units
Intrinsically safe power supplies for use in coal mines : part - 3 : specification for rechargeable battery units
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- London BSI 1982
- 4 p.
- BSI 6182 : part - 3 : 1982 .
DBSI 6182 : part - 3 : 1982
DBSI 6182 : part - 3 : 1982