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.
Greenwood's and Airvac Ventilating Co Ltd. Designers and Manufacturers of Ventilating Equipment for Buildings, Vehicles and Vessels of Beacon House, Kingsway, London. (1952).
Presumably brought together the company behind Greenwood's Patent Chimney Cowl and Airvac Ventilators
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