Magnetoelectric needle telegraph, 1856
Telégrafo de aguja magnetoeléctrico de 1856

Description

Magnetoelectric needle telegraph, 1856 with the dual-induced T Werner Siemens

Linked items

Documents:

Permanent links

DMG-Lib		https://www.dmg-lib.org/dmglib/handler?image=7824023
Europeana		http://www.europeana.eu/portal/record/2020801/dmglib_handler_image_7824023.html

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Univ. Basque C.

http://www.ehu.es/compmech/welcome/Home.html

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