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Vickers Duralumin 1912
Samuel Fox 1933 High Duty Alloys 1936 High Duty Alloys 1936 James Booth 1936 Reynolds 1936 High Duty Alloys 1939 Metro Vickers 1939 Reynolds 1939 Birmetals 1941 High Duty Alloys 1941 High Duty Alloys 1941 Reynolds 1942 James Booth 1943 Hiduminum New Co 1944 Birmetals 1945 H.Wiggin 1950 Tungum Co 1950 H Wiggin 1954 H Wiggin 1956 Tungum Co 1956 Burnley 1957 H Wiggin 1957 Tungum Co 1957 Wm Jessop 1957 Burnley 1958 Wm Jessop 1958 Firth Brown 1959 Firth Brown 1959 Hiduminium 1960 H.Wiggin 1960 G.E.C. 1961 HDA Alloys 1968 |
Birmetals 
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