2004-10-30/2020-04-09 - From the OHS PC Database, derived from A Guide to North American Organbuilders, rev. ed., by David H. Fox (Organ Historical Society, 1997). — Patent awarded to R. Wardle Jarrett, Highgate, England; jointly with Richard W. Evans of Hackney, England, 1881. Patent #251,562; 27 Dec. 1881; expression bellows. Source: Information taken from the text of a United States patent.
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