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of Victoria Works, Whitefield, near Manchester. Engineers & Scientific Instrument Makers. Telephone: Whitefield 2450. Telegraphic Address: "Thorina, Whitefield"
1880 Business established
1922 Products: recording gauges, etc., for gas works compressors and incandescent burners for gas lighting, humidifying apparatus, etc., for textile mills, etc.
1937 Listed Exhibitor - British Industries Fair. Gas Pressure Gauges and Registers. Consumption Indicators and Recorders. Discount Meters. Gas Governors. Water Governors. Compressors. Gas Mixing Apparatus. Antipulsators Gas Thermostats. Relay Valves for Thermostatic and Pressure Control. (Stand No. Ca.705) 
1943 Patent - Improvements in gas meters.