Multiple choice general knowledge science & technology

Who invented ball point pen ?

  1. Waterman

  2. Oscar

  3. Wilson

  4. Lazlo Biro
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Lazlo Biro, a Hungarian journalist, invented the modern ballpoint pen in the 1930s. His design used a tiny ball bearing that rotated to pick up ink and deposit it on paper. The invention revolutionized writing instruments and became commercially successful worldwide.

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