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Tweddell's System Ltd, of London SW
Presumably commercialising the developments of Ralph Hart Tweddell
Fielding hydraulic riveters embodying the Tweddell system gained the highest awards at Philadelphia in 1876, Paris in 1878 and London in 1885.
1895 Illustrated catalogue of hydraulic tools and other machinery made by Fielding and Platt under this company's system. There had been a great growth in application of hydraulic methods in recent years.