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 148,493 pages of information and 233,940 images on early companies, their products and the people who designed and built them.

Telephone and Microphone Co

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Instrument Manufacturers, of Throwley Road, Sutton Surrey.

Established 1913.

1922 Products: Junction boxes for intercommunication telephones, electric bell indicators, electrical aids for the deaf.

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