Water Transport
1931
Telecommunications
1923-1941
1910-1921
1913; c. 900 CE
1797-1912; 1962
Navigation
1861-1873
1923
Time Measurement
1596
c.1869
1861
1750-1850
Ethnography and Folk Medicine
1880-1925
1965-1966
1900-1929
Hand and Machine Tools
1805-1873
Warships
1982
Radio Communication
1900-1950
Asian Medicine
1601-1800
Oceanography
1818
1853-1870
Classical & Medieval Medicine
1851-1920
Therapeutics
1914-1918
Veterinary Medicine
1701-1800
Pharmacy-ware
1880-1920
1866-1900
Oriental Medicine
1801-1900
Aeronautics
1701-1850
1961-1974
Marine Engines
1830-1835
Orthopaedics
1910-1930
1875-1885
Photographic Technology
1925-1935
1871-1910
Anatomy & Pathology
1880-1928
1840-1841
1850-1861
1901-1918