Find number abc
If c8368 - a91c1 = a9a1b find number abc. Multiple solutions may exist.Correct answers: 0
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Fourdrinier paper-making machine patentIn 1806, a British patent, No 2,951/1806 was dated for Henry Fourdrinier's paper-making machine. The specification gave that "A number of moulds, of the description called laid and wove, are hooked together to form one long mould...A vessel or trough from which the paper stuff or material is caused to flow upon the moulds...A set of cylinders, upon which is passed, in the manner of a jack towel, an endless web of felting. There is a third cylinder...communicates by means of another web of felt with an additional pair of pressing cylinders, whence it proceeds to the second pair,...so that continuing the process, paper of any length may be made..." Improvements were granted a further patent dated 14 Aug 1807.« |