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Patent applications and USPTO patent grants for Wenk; Robert B..The latest application filed is for "letter opener".
Patent | Date |
---|---|
Letter opener Grant D420,271 - Wenk February 8, 2 | 2000-02-08 |
Combined letter opener and sheet-like material cutter tool Grant 6,003,181 - Wenk December 21, 1 | 1999-12-21 |
Letter opener Grant D355,347 - Wenk February 14, 1 | 1995-02-14 |
Combined ruler and letter opener Grant D353,316 - Schmidt , et al. December 13, 1 | 1994-12-13 |
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