pH meter type D-303-B/C

maker:
Muirhead and Company Limited
pH meter type D-303-B/C, no. 143995 by Muirhead and Co. Ltd.

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pH meter type D-303-B/C, no. 143995 by Muirhead and Co. Ltd.
Science Museum Group
© The Board of Trustees of the Science Museum

pH meter type D-303-B/C, no. 143995 by Muirhead and Co. Ltd.

Details

Category:
Telecommunications
Object Number:
1989-1075
type:
ph meter
credit:
Muirhead Vactric Components Limited