A LITTLE SOMETHING WORTH KNOWING
A small discovery. Yours to pass on.
HistoryOne small ahaInvention or discoveryThis Hungarian-Argentine inventor developed a successful pen with a rolling ball tip.
Think it. Then flip it.✳ ahamoraTap to reveal ↻Back to the cue ↶
HistoryOne small aha
Your new ahaLászló Bíró
✳ ahamoraReference ↗Patented an improved design in 1938 Source: László Bíró ↗