Tuesday, November 4, 2025

Re: Invention of ballpoint pen


Sent from my iPhone

On 31 Oct 2025, at 8:58 AM, Chang Cheng Liang <changchengliang@gmail.com> wrote:


https://www.threads.com/@royce231/post/DQbcc_qgEDs?xmt=AQF0SH1ardRDxy29_ultZudi62aMtoGA9iyhs4RCsVY2VQ&slof=1




Sent from my iPhone
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