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 148,369 pages of information and 233,846 images on early companies, their products and the people who designed and built them.

Clemens Riefler

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of Munich and Nesselwang

Makers of clocks and mathematical instruments.

Established in 1841 to make mathematical instruments.

One of Clemens's sons, Sigmund, patented a new form of escapement for high precision clocks, which was a great improvement on the established type.[1]

See Also


Sources of Information

  1. [1] 'Biographical Dictionary of the History of Technology' edited by Lance Day, Ian McNeil