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 Robert H. Dowling, Newark, Ohio, 1881. Patent #249,322; 8 Nov. 1881; whistle for cabinet and pipe organ. Source: Information taken from the text of a United States patent.
2022-02-19/2022-02-19 - Robert H Dowling received patent for a whistle for cabinet and pipe organ. -Larry Gorley
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