John Dopyera (1893-1988) was a Slovak-American inventor and entrepreneur, and a maker of stringed instruments. His inventions include the resonator guitar and important contributions in the early development of the electric guitar. Wikipedia
The definitive Wikipedia entry for John Dopyera. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/John_Dopyera
Dobro was invented and for many years made by American Slovaks - Dopyera brothers, who emigrated from Doln Krup near Trnava to California in 1908. www.dobrofest.sk/angl_files/jdopyera.htm
From approximately 1929 to 1945 the National Dobro Corporation made resonator (mechanically amplified) guitars, mandolins,ukuleles and other instruments, all based on the original work of John Dopyera. This site is intended to showcase some of their work www.notecannons.com/
