Siemens automatic cylinder transmitter, 1874

Made:
1874
Siemens automatic cylinder transmitter, 1874

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Siemens automatic cylinder transmitter, 1874
Science Museum Group
© The Board of Trustees of the Science Museum

Siemens automatic cylinder transmitter, 1874

Details

Category:
Telecommunications
Object Number:
1970-65
type:
transmitter
credit:
GEC-AEI Telecommunications Ltd.