Menu:

References

Aronis, T. P. (1979). Patent No. 4175466. USA.

Back, J. S. (1896). Patent No. 559764. Canada (US Patent Office).

Brown, S. Demonstration of the Newton Keyboard Autoharp.

Ebay Auction of Gondolin (Millingtont/Young) instrument. Retrieved March 2015 by Katherine Rhoda.

Eschemann, W. Patent No. 566388. USA

Harrison, G. (2004). Fretlesszithers.com. Retrieved 2011 from Fretlesszithers.com

Henner, P. (1976). Patent No. 7621691. France.

Holmes, K. (2014, September 15th). Personal communication, 2014

Michel, A. (n.d.). Manual Zithern. (University of Leipzig) Retrieved January 2011 from Studia Instrumentorum Musicae.

Millington, H., & Young, J. (1899). Patent No. 9698. UK.

Newton, W. T. (1985). Patent No. 4506583 A. USA.

Page, W. (1915). Patent No. 22417. UK.

Styles, I. (1990). The True History of the Autoharp. Autoharp Quarterly , 3 (3).

Wigand, F. (1888). Patent No. 390830. US.

Young, J. (1899). Patent No. US625996 A . USA.

Zimmermann, C. F. (1882). Patent No. 257808.