inventor Posted July 14, 2004 Share Posted July 14, 2004 Several Patents using this type of keyboard were taken out by Dr Pitt-Taylor. these were G.B. Patents: 1916 No 102552, 1922 No. 208274, & 1923 No 220824. I don't have these patents to hand but I am fairly certain that one of these almost exactly corresponds to the one you have described. He also took out a number of other Patents during this period but more on Maccann style. A Mr Mitchel also took out a number of patents at around this period from 1912-1930 which were more on the Piano Style. A full listing of these can be found in the "background to the invention" section of the Hayden Patent - GB 2131592. Regarding Wheatstones listing it as a "Piano" concertina system; I note that the first Hayden System concertina made by H Crabb & Son's is listed in their ledgers as a Jeffries Duet type system; but is only similar in the way the buttons fall on the concertina, not even remotely similar in the notes that each button plays ! Inventor. Quote Link to comment Share on other sites More sharing options...
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