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			   We claim the ornamental design for a collection chamber for a vacuum cleaner, as shown and described.     
    
    
    
    
    
    
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FIG. 1 is a perspective view of a collection chamber for a vacuum cleaner of the design according to this invention.
FIG. 2 is a front view of a collection chamber for a vacuum cleaner of the design according to this invention.
FIG. 3 is a rear view of a collection chamber for a vacuum cleaner of the design according to this invention.
FIG. 4 is a plan view of a collection chamber for a vacuum cleaner of the design according to this invention.
FIG. 5 is a view from underneath of a collection chamber for a vacuum cleaner of the design according to this invention.
FIG. 6 is a right side view of a collection chamber for a vacuum cleaner of the design according to this invention; and,
FIG. 7 is a left side view of a collection chamber for a vacuum cleaner of the design according to this invention.
Gammack, Peter David, Dyson, James, Knox, Alexander Stuart, Ganderton, Michael David
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Jun 29 2002 | GANDERTON, MICHAEL DAVID | Dyson Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 013122 | /0544 | |
| Jul 08 2002 | GAMMACK, PETER DAVID | Dyson Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 013122 | /0544 | |
| Jul 09 2002 | DYSON, JAMES | Dyson Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 013122 | /0544 | |
| Jul 09 2002 | KNOX, ALEXANDER STUART | Dyson Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 013122 | /0544 | |
| Jul 19 2002 | Dyson Limited | (assignment on the face of the patent) | / | |||
| Dec 31 2012 | Dyson Limited | Dyson Technology Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 029698 | /0023 | 
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