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 142,250 pages of information and 227,823 images on early companies, their products and the people who designed and built them.

John Langridge

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53 Vale Road, Ramsgate.

Patented a thermostatic valve for the control of the passage of steam and water through heaters and radiators.

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