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The ornamental design for a pen, as shown and described.
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| Patent | Priority | Assignee | Title |
| CNM8450600009, | |||
| 233631, | |||
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| D388825, | Nov 03 1995 | Tombow Pencil Co., Ltd. | Pen |
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| D545366, | Feb 15 2006 | OMX, Inc. | Pen and cap |
| D545367, | Feb 15 2006 | OMX, Inc. | Pen |
| D546884, | Feb 15 2006 | OMX, Inc. | Pen |
| D546887, | Feb 15 2006 | OMX, Inc. | Clip for pen |
| D548789, | Feb 15 2006 | OMX, Inc. | Pen and cap |
| D550771, | Sep 22 2005 | NINGBO BEIFA GROUP CO , LTD | Pen |
| D562398, | Mar 27 2006 | BEIFA GROUP CO , LTD | Pen |
| D580489, | Apr 11 2007 | Beifa Group Co., Ltd. | Dual-tip highlighter |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Apr 15 2008 | YU, FEI | BEIFA GROUP CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 020815 | /0835 | |
| Apr 15 2008 | GE, JIE | BEIFA GROUP CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 020815 | /0835 | |
| Apr 16 2008 | Beifa Group Co., Ltd. | (assignment on the face of the patent) | / |
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