Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 162,258 pages of information and 244,500 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
Douglas Joseph Bolton M.Sc. (Eng.), London, M.I.E.E.
1939 Lecturer in Electrical Engineering, The Polytechnic, 309, Regent Street, London, W.1. Private address: 34, Compayne Gardens, Hampstead, N.W.6.
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