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West's Gas Improvement Company of Albion Iron Works, Miles Platting, Manchester.
1874 Company founded by John West.
1894 Private company.
1894 Air Compressor for Manchester Gas Works with valve gear. 
1927 See Aberconway for information on the company and its history.
1935 See West's Gas Improvement Co:1935 Review.
1959 Re-registered as the Holding Company of the WGI Group.
1961 Gas engineers.