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Hamburgisches Welt-Wirtschafts-Archiv (HWWA) - Countries-subjects folders

Hong Kong : Wireless telegraphy and telephony, radio  Wikidata item

 

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Country/geo Hong Kong
Subject Wireless telegraphy and telephony, radio
superordinated Postal services, telegraphy and telephony
URI https://pm20.zbw.eu/folder/sh/141268,145663
ID sh/141268,145663