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| 9199507 | Writing instrument and ink cartridge unit | May 20, 11 | Dec 01, 15 | Europe Brands S.A.R.L., EUROPE BRANDS S.À R.L, |
| 9163153 | Metallic ink composition and writing instrument containing same | Mar 15, 13 | Oct 20, 15 | SANFORD, L.P. |
| 9132692 | Writing instrument | Jun 14, 11 | Sep 15, 15 | MITSUBISHI PENCIL COMPANY, LIMITED |
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| 7866908 | Stethoscope cleaning assembly | Dec 09, 08 | Jan 11, 11 | SEEDLINGS LIFE SCIENCE VENTURES, LLC. |
| 7794164 | Layered gripping member for a writing instrument | Jun 16, 04 | Sep 14, 10 | KABUSHIKI KAISHA PILOT CORPORATION |
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| 6247866 | Feeding ducts for writing liquids in fountain pen nibs, and a method of producing same | Feb 22, 95 | Jun 19, 01 | Not available |