Profs. Ayrton and Perry standard inductance

Made:: Westminster

maker:: Nalder Brothers and Company

Profs. Ayrton and Perry standard inductance, no

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Profs. Ayrton and Perry standard inductance, no
Science Museum Group
© The Board of Trustees of the Science Museum

Profs. Ayrton and Perry standard inductance, no. 6254, by Nalder Brothers and Co. London

Details

Category:: Telecommunications

Object Number:: 1989-973

type:: standards

credit:: Muirhead Vactric Components Limited

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Profs. Ayrton and Perry standard inductance

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