Det hände 1957
Log driving, galvanizing of pylons, mathematic machine BESK, safety equipment for the workforce, development of safety belts in cars, the Vattenfall championship summer and winter.
Year: 1957 |
Place: Kilforsen/Fjällsjöälven, Västerås, Råcksta, Ligga/Lule älv |
Creator: Okänd |
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