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 148,459 pages of information and 233,880 images on early companies, their products and the people who designed and built them.

Lectro Linx

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September 1933.
1935. Clix.
1935. Clix.
May 1936.

of 79a Rochester Row, London S.W.1

Clix valve holders

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Sources of Information