1841 'circular multiplying' machine at the Musée des Arts et Métiers
David (Didier) Roth was born in 1800 in Cassovia (Hungary)
The young Roth left to study medicine in Vienna. He later left for Paris, probably due to the anti-Semitic sentiment in Vienna.
For 30 years he practiced homeopathic medicine, with a wealthy Parisian clientele.
Roth was also an inventor of calculating machines and measuring instruments.
Between 1840 and 1844, Roth filed six patents.
See Also
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Sources of Information
- [1] Les machines du Docteur Roth (1800-1885). www.ami19.org; Valéry Monnier, 2011