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Standard
Most Recent
BS 1975:1953
Specification. Primary cells and batteries for intrinsically safe bell signalling circuits in coal mines
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Technical characteristics
| Publisher | British Standards Institution (BSI) |
| Publication Date | 04/23/1953 |
| Page Count | 0 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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Previous versions
01/01/1957
Superseded
Historical
23/04/1953
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