Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,972 pages of information and 229,026 images on early companies, their products and the people who designed and built them.

Didier Roth

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1841 'circular multiplying machine' at the Musée des Arts et Métiers
JD 2019 CNAM Roth2.jpg

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