2004-10-30/2019-11-06 - From the OHS PC Database, derived from A Guide to North American Organbuilders, by David H. Fox (Richmond, Va.: Organ Historical Society, 1991). — Patents awarded to Herbert Richardson, London, England. Patent #516,990; March 20, 1894; reed organ. Patent #572,830; December 8, 1896; pipe forming machine. Source: Information taken from the text of the United States patents listed above.
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