Surveying
1940
Aircraft Propulsion
Cinematography
c.1940
Orthopaedics
c. 1940
Surgery
Plastics and Modern Materials
Passenger Comforts
Telecommunications
Printing & Writing
Photographs
1940-01-23
Classical & Medieval Medicine
2050-1750 BCE
Papermaking
Radio Communication
2000-1350 BCE
Locomotives and Rolling Stock
Domestic Appliances
Coal Mining
1940-01-21
Television
1940-09-03
Optics
Electricity and Magnetism
Electricity Supply
Public Health & Hygiene
Signalling & Telecommunications
Industrial Metrology
1940-01-08
Building Construction
2000-1001 BCE
1940-01-15
Electronic Components
Radiomedicine
Photographic Technology