British standard specification for five-ampere, fifteen-ampere and thirty-ampere two-pin wall plugs and sockets for domestic purposes : without earthing connection : revised December, 1919 /
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| Typ dokumentu: | Kniha |
| Jazyk: |
angličtina |
| Vydavatel: |
London :
Crosby Lockwood & son,
1919.
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| Edice: |
British engineering standards association ;
No. 73-1919 |
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