Finally, China manufactures a ballpoint pen all by itself - The Washington Post
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Ballpoint pens and the danger of China's 'one-dragon' policy | Financial Times
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Pen power: China closer to ballpoint success - BBC News
How Do Ballpoint Pens Work (2023) – Dayspring Pens
How the Ballpoint Pen Changed Handwriting - The Atlantic
The Story of László Bíró, the Man Who Invented the Ballpoint Pen | Smart News| Smithsonian Magazine
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The ball just fell out of my ballpoint pen as I was writing in my notebook : r/mildlyinteresting
The Best Ballpoint Pens | JetPens
