Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,468 pages of information and 233,894 images on early companies, their products and the people who designed and built them.
G. Rupert R. Bray (c1908-?) B.Sc. (Eng.), A.M.I.E.E.
1939 Business address: Research Dept., Woolwich. Private address: Walnut Tree Cottage, Burlings Lane, Knockholt, Kent. Age: 31. Career: Asst. Insulation Engr., Research Dept., B.T.H. Co. for 4 years; in charge of Elec. Laboratory, B.T.H. Co. for 4 years.