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 143,895 pages of information and 230,109 images on early companies, their products and the people who designed and built them.

Patent Gear and Metal Hardening Co

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formerly Patent Gear Hardening Co

and later became the Shorter Process Co

the business of Albert Edward Shorter

See Also


Sources of Information