US Patent: 2,265,055
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| Fountain pen for pulpy ink
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Patentee:
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| Laszlo Jozsef Biro (exact or similar names) - Budapest, Hungary |
| Assignees: |
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Luis Lang - Buenos Aires, Argentina |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 27, 1938 |
| Granted: |
Dec. 02, 1941 |
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Jeff Joslin
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Description: |
| Despite the somewhat misleading title, this is the patent for the ball-point pen. Patent 2,258,841 was issued earlier but actually applied for over two years later than this one. |
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