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 143,439 pages of information and 230,054 images on early companies, their products and the people who designed and built them.

Arthur J. Aldridge

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Arthur J. Aldridge

1905-12 National Telephone Co.

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

Various patents in Telephone Engineering.

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