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 138,140 pages of information and 223,036 images on early companies, their products and the people who designed and built them.

Triefus Industries

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May 1950.
1960.

of Manor Royal, Crawley.

1960 Diamond drill bits for mining

See Also

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Sources of Information

  • Mining Year Book 1960. Published by Walter E. Skinner. Advert p66