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 144,350 pages of information and 230,176 images on early companies, their products and the people who designed and built them.

W. Lahmeyer and Co

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1891. Electrical Current Transformer.

of Frankfort-am-Main

c.1899 Became the Electric Engineering Co.

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