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 148,099 pages of information and 233,633 images on early companies, their products and the people who designed and built them.

Richard Whiddington

From Graces Guide

Jump to: navigation, search

University of Leeds.

1921 Patented a shadow electroscope. [1]

See Also

Loading...

Sources of Information

  1. The Engineer 1921/07/01