Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,394 pages of information and 247,064 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.
1953 Construction of factory at Portsmouth by McMurdo Instrument Co, under the name Patomic Ltd., manufacturing valveholders and connectors initially. Associated with McMurdo in the same site later were Harwin's Ltd. (electronic component manufacturers) and Halmatic Ltd. (the glassfibre boat manufacturers), all owned by Mr. de Laszlo. At one time 3.4 million valveholders per week were made by about 950 people.
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