Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,708 pages of information and 247,104 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.
Formed by Edwards High Vacuum and Efco to offer complete metallurgical installations
1957 Developing a process to offer metals and alloys at a stage between true vacuum melting and simple degassing; useful for high quality castings of high alloys where it was impracticable to contain the mold in a vacuum[1]
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MW1.43