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manometer

1950-59

Hays portable gas analyser for the analysis of exhaust gas from furnaces and I.C. engine exhaust

Telescopic dowsing rods, pair, 1994

Telescopic dowsing rods, pair, 1994

1994
Gas Analyser- Portable 'Hays' type gas analyser, manufactured by Duguids Limited of Lymm, Cheshire. Number N668. Part of Coal Mining Collection.

Gas Analyser- Portable 'Hays' type gas analyser