- TitlePhoto showing an exhibition of French scientific instruments
- ReferenceCORP/SCM/Z/111/50/06/10
- Production date08-02-1950 - 08-02-1950
- Sport and General Press AgencyBiography
- Scope and ContentPhotograph with a caption that reads: 144903. Four-channel Electronic Switch (inventor Mr Bladier) Purpose: Simultaneous recording of four phenomena on the screen of a cathode-ray oscillograph allowing comparison of ware-forms, amplitudes, frequencies and relative phases'.
- Extent1 photograph
- LanguageEnglish
- Level of descriptionITEM
- Repository nameScience Museum, London
- Conditions governing accessOpen access
- Conditions governing ReproductionCopies may be supplied in accordance with current copyright legislation and Science Museum Group terms and conditions
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