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 142,963 pages of information and 228,875 images on early companies, their products and the people who designed and built them.

System Computors

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System Computors Ltd. of Fossway Newcastle-upon-Tyne.

A subsidiary of Reyrolle Parsons

1969 Supplier of laser surveying tools based on lasers developed by International Research and Development Co (see advert)

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