
László Bíró born Sept. 29,1899
The inventor of the biro (ball point) pen, László Bíró, was born September 29, 1899 in Budapest, Hungary. Bíró László József, inventor of ball-point pen Issued by Hungary in 1996 Designed by Dudás László Contemplating the problem of how to deliver thick, quick-drying ink to a paper surface without requiring the ink to flow, Bíró […]