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			   The ornamental design for an oil damper, as shown and described.     
    
    
    
    
    
    
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FIG. 1 is a perspective view of the front, bottom and left side of an oil damper showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a rear view thereof; and,
FIG. 7 is a bottom view thereof.
Arisaka, Oomi, Kawamura, Yukinori, Muramatsu, Hideaki
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Nov 17 2003 | Piolax Inc. | (assignment on the face of the patent) | / | |||
| Nov 18 2003 | MURAMATSU, HIDEAKI | Piolax Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 014956 | /0663 | |
| Nov 19 2003 | ARISAKA, OOMI | Piolax Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 014956 | /0663 | |
| Nov 20 2003 | KAWAMURA, YUKINORI | Piolax Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 014956 | /0663 | 
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