2004-10-30/2019-04-29 - From the OHS PC Database, derived from A Guide to North American Organbuilders, by David H. Fox (Richmond, Va.: Organ Historical Society, 1991). - Bowmanville, Ontario, Canada, 1881. Patent #251,027; December 20, 1881; organ coupler. Source: Information taken from the text of a United States patent.
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