Aeronautics
1919
Motive Power
1784 (original); 1986 (model)
Marine Engines
1890-1908
Time Measurement
1965
Mathematics
1915
Papermaking
1809; 1984
Astronomy
1906
Vacuum Technology
1927
Photographs
1987
Textiles Machinery
1961
1975
1925
1973
1937
Railways
1929
Nuclear Physics
1947
Sound Reproduction
2013
c. 1931
1924
1972
1872
Metallurgy
before 1889
1884; c. 1935
SCM
1933
1978-1979
1928