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BeskrivelseElektrisk Bureau Oslo Middelthunsgt 17 in 1896.jpg
English: Elektrisk bureau telecom factory in Oslo, 1896
Dato
Kilde
Rinde, Harald: Et telesystem tar form 1855-1920, Gyldendal 2005
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UkjentUnknown author
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Public domainPublic domainfalsefalse
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