László József Bíró (,; 29 September 1899--24 October 1985) was an inventor of the first commercially successful modern ballpoint pen, unlike the version invented 22 years earlier by John J. Loud in 1888.
László József Bíró (,; 29 September 1899--24 October 1985) was an inventor of the first commercially successful modern ballpoint pen. This was unlike the version. This version was invented 22 years earlier by John J. Loud in 1888.