2004-10-30/2020-04-09 - From the OHS PC Database, derived from A Guide to North American Organbuilders, revised edition, by David H. Fox (Organ Historical Society, 1997). — Epson, England, 1975. Patent #3,903,777; 9 Sep. 1975; electric pipe valve. Source: Information taken from the text of a United States patent.
Regrettably, it is not possible to display the information about the sponsor of this pipeorgandatabase entry or if there is a sponsor. Please see About Sponsors on Pipe Organ Database.