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Catalogue description research work enabling the detection of faults in high tension cables laid in streets...
This record is held by Science and Industry Museum
| Reference: | 2018-366 |
|---|---|
| Description: | research work enabling the detection of faults in high tension cables laid in streets and coal mines, without having to dig up lengths of cable to find the fault |
| Date: | 1930-1970 |
| Held by: | Science and Industry Museum, not available at The National Archives |
| Other reference: | See Annual Return 2018 |
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