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The ornamental design for a carpet vacuum cleaner, as shown and described. |
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FIG. 1 is a perspective view of the top, front and one side of a carpet vacuum cleaner showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a rear elevational view thereof; and,
FIG. 6 is a top plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 21 1990 | WULFF, RICHARD F | CASTEX INDUSTRIES, INC , A CORP OF MI | ASSIGNMENT OF ASSIGNORS INTEREST | 005334 | /0866 | |
| May 22 1990 | Castex Industries, Inc. | (assignment on the face of the patent) | / | |||
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| Nov 27 2000 | Castex Incorporated | Tennant Company | MERGER SEE DOCUMENT FOR DETAILS | 011751 | /0434 |
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