Time switch type D-345-A

maker:
Muirhead and Company Limited
Time switch type D-345-A, no. 136444, by Muirhead and Co. Ltd.

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Time switch type D-345-A, no. 136444, by Muirhead and Co. Ltd.
Science Museum Group
© The Board of Trustees of the Science Museum

Time switch type D-345-A, no. 136444, by Muirhead and Co. Ltd.

Details

Category:
Telecommunications
Object Number:
1989-1027
type:
time
credit:
Muirhead Vactric Components Limited