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In 1941, the Biro brothers and a friend, Juan Jorge Meyne, fled Germany and moved to Argentina, where they formed Biro Pens of Argentina and filed a new patent in 1943. Their pen was sold in Argentina as the Birome (portmanteau of the names Biro and Meyne), which is how ballpoint pens are still known in that country. This new design was licensed by the British, who produced ballpoint pens for RAF aircrew as the Biro. Ballpoint pens were found to be more versatile than fountain pens, especially at high altitudes, where fountain pens were prone to ink-leakage.
Output:
who created the ball point pen in 1944