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			 The ornamental design for a ballpoint pen, as shown and described. 
			  
			  
			  
			  
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| Patent | Priority | Assignee | Title | 
| 181244, | |||
| 182162, | |||
| D461501, | Jun 22 2001 | Mitsubishi Pencil Co., Ltd. | Ball-point pen | 
| D489088, | Apr 08 2003 | The Pilot Ink Co., Ltd. | Ball-point pen | 
| D496961, | Apr 04 2003 | Kabushiki Kaisha Pilot Corporation | Ball point pen | 
| D510599, | Jun 29 2004 | Pentel Kabushiki Kaisha | Cap for writing instrument | 
| D525302, | Jan 27 2004 | ZEBRA CO , LTD | Ballpoint pen | 
| D534955, | May 17 2006 | Shanghai Sino-Korean M&G Stationery Manufacturing Co., Ltd. | Helix pen | 
| D535694, | Dec 15 2004 | SHANGHAI M&G STATIONERY INC | Pen | 
| D535695, | Dec 14 2004 | SHANGHAI M&G STATIONERY INC | Pen | 
| D536034, | Nov 05 2004 | Stilus S.r.l. | Writing instrument | 
| D549776, | Mar 02 2006 | STILOLINEA S R L , AN ITALIAN LIMITED LIABILITY COMPANY | Writing instrument | 
| WO63754, | 
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Dec 12 2006 | Kims Enterprise Co., Ltd. | (assignment on the face of the patent) | / | |||
| Jan 03 2007 | JEON, KWANG TAEK | KIMS ENTERPRISE CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 018943 | /0931 | 
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