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NC/3/1/4 · Unidad documental simple · 22 February 1951
Parte de National College for Heating, Ventilating, Refrigeration and Fan Engineering

Photograph of N. S. Billington (Head of College), A. E. Leach (Chairman of the British Refrigeration Association), R. Duncan Wallace (President of the Insitute of Heating and Ventilating), G. Evans (Governor )and E. G. Batt (Director of the British Refrigeration Association and Governor).

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