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 143,370 pages of information and 230,032 images on early companies, their products and the people who designed and built them.

O. Haab

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1901. Haab's Eye Magnet.

Professor O. Haab of the Zurich Eye Hospital, invented this strong electromagnet for the removal of steel and iron fragments from the eye.

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