2004-10-30/2019-04-29 - From the OHS PC Database, derived from A Guide to North American Organbuilders, revised edition, by David H. Fox (Organ Historical Society, 1997). - Chicago, Illinois, 1893-1898. Patent #503,226; 15 Aug. 1893; pipe organ. Patent #598,311; 1 Feb. 1898; organ. Sources: Information taken from the text of United States patents.
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