Improvements introduced in harward devices.
Perfeccionamientos introducidos en aparatos de minuteria.

Description

View in front of the main train of the timer device. Image taken from Spanish Office of Patent and Trademark.

Linked items

Documents:

Permanent links

DMG-Lib		https://www.dmg-lib.org/dmglib/handler?image=24661023
Europeana		http://www.europeana.eu/portal/record/2020801/dmglib_handler_image_24661023.html

Data provider

Univ. Basque C.

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

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