bn:02713921n
Noun Named Entity
Categories: 20th-century American inventors, 1988 deaths, 1893 births, Austro-Hungarian emigrants to the United States, Slovak inventors
EN
John Dopyera  Dopera  Dopyera  Dopyera, John  Dopyera brothers
EN
John Dopyera was a Slovak-American inventor and entrepreneur, and a maker of stringed instruments. Wikipedia
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EN
John Dopyera was a Slovak-American inventor and entrepreneur, and a maker of stringed instruments. Wikipedia
Slovak inventor Wikidata
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