Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 162,258 pages of information and 244,499 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
of Denton, near Manchester.
1984 Freeman Process Systems, a specialist process engineering consultancy serving the chemical industry, was established
Later became Haden Freeman Ltd, a major multi-disciplinary engineering resource for all of the process industries.
by 1996 was a subsidiary of Haden MacLellan Holdings plc
2010 the Unit Group acquired Birwelco from Haden Freeman
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