Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,701 pages of information and 247,104 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.
1936 The name of Mains and Allied Radio Supplies was changed to Machine Products Ltd
1978 Name changed to Plessey Electronic Components Ltd
1979 Name changed to Plessey Office Systems Ltd, a management support function.
1981 Name changed to Plessey Electronic Systems Research Ltd
1986 Name changed to Plessey Research Roke Manor Ltd
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