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 144,315 pages of information and 230,176 images on early companies, their products and the people who designed and built them.

Arthur J. Aldridge

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Arthur J. Aldridge

Assistant Staff Engineer, P.O. Eng. Dept., G.P.O., Post Office Research Station, Dollis Hill, N.W.2.

1905-12 National Telephone Co.

Various patents in Telephone Engineering.

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