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2. H. Bessemer, U.S. Patent No. 49,053 (25 July 1865).
3. A. W. Cramb, Iron & Steelmaker 15 (1), 37–39 (1988).
4. J. C. Agarwal and M. J. Loreth, Casting of Near Net Shape Products, Honolulu, Hawaii, 13-17 November 1988 (edited by Y. Sahai, J. E. Battles, R. S. Carbonara and C. E. Mobley), pp. 725-736. TMS, Warrendale, Pennsylvania (1988).