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 149,270 pages of information and 234,239 images on early companies, their products and the people who designed and built them.

Valveless Engine Co

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November 1907. Valveless engine.

of Blackheath

1906 January. Test of a car fitted with the two-stroke Valveless engine are complete.[1]

1906 February. Reports on a car with a Valveless motor.[2]

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