telegraphon
Sign in to savemagnetic recording device invented by Valdemar Poulsed in 1898
Wikidata facts
- Instance of
- invention
- Subclass of
- Recording wire
- Image
- Telegrafon 8154-2.jpg
Show 3 more facts
- discoverer or inventor
- Valdemar Poulsen
- time of discovery or invention
- 1898-00-00
- Commons category
- Telegraphon
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