NC/3/5/2
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c1960s
Parte de National College for Heating, Ventilating, Refrigeration and Fan Engineering
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NC/3/6/3
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1960s
Parte de National College for Heating, Ventilating, Refrigeration and Fan Engineering
NC/3/6/7
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1960s
Parte de National College for Heating, Ventilating, Refrigeration and Fan Engineering
NC/4/2/4
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1962-1964
Parte de National College for Heating, Ventilating, Refrigeration and Fan Engineering
NC/4/2/5
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1965-1967
Parte de National College for Heating, Ventilating, Refrigeration and Fan Engineering