Computing & Data Processing
c.1990
Sound Reproduction
1982-1984
Radio Communication
c.1945
Telecommunications
1977
c.1880
1980
Audiology
1801-1900
c.1946
Photographic Technology
1945
1957
Papermaking
1964
c.1900
1953
Industrial Chemistry
1896
c.1870
Printing & Writing
c.1930
c.1920
c.1890
Coal Mining
1880-1950
Textile Industry
1960
1973
Scientific Instruments & Research
c.1960
c.1959
Metallurgy
c.1865
1984; 1983
c.1980
c1880
1904
c.1944
c. 1920
1877