25th May 1905, Page 16
25th May 1905
Page 16
Page 16, 25th May 1905
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Abridgments Of Interesting Patent Specifications.
Nu. 9009 : dated April 2nd, 1904.— 11. 5, fiele-Shaw, of the Liverpool University ; It. B. Helliwell, Liverpool ; and IV. L. Gilder, of Brown-Bayley's Steel Works,......