Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,381 pages of information and 233,518 images on early companies, their products and the people who designed and built them.
of Phonopore Works, Scotts Road, Southall, Middlesex.
1922 Products: Phonopore superimposed system of telephones and standard telephones of all types.
N.B. New Phonopore Telephone Co also had works in Southall