Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,366 pages of information and 233,846 images on early companies, their products and the people who designed and built them.
or was this Heron and Gresham, of Manchester
1860 James Gresham, a draughtsman at Sharp, Stewart, saw the potential in Giffard's injector
1866 Gresham and Heron made arrangements with Giffard to manufacture the injectors in Britain as Gresham and Heron