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manometer

1950-59

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

Pair of telescoping dowsing rods, Lymm, Cheshire, UK, 1994.

Pair of telescopic dowsing rods, 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