The first patent on a ballpoint pen was issued on 30 October, 1888, to John J Loud. The pen proved to be too coarse for letter writing, but it could be used to mark rough surfaces, especially leather & was not commercially exploited.
By: Dev!
- Created By
- School
- Address
- Class
- Akhil, Ashik, Vishnu.M, Yadhu Krishnan
- S.M.V.S.School
- Kerala