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The ornamental design for a vacuum pump rotor, as shown and described.
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FIG. 1 is a top plan view of a vacuum pump rotor showing my new design;
FIG. 2 is a front view thereof (rear view is the same as the front view);
FIG. 3 is a right side view thereof (left side view is the same as the right side view);
FIG. 4 is a bottom view thereof; and,
FIG. 5 is a cross-sectional view taken along the line 5--5 of FIG. 2.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Dec 18 2000 | Kashiyama Kougyou Industry Co., Ltd. | (assignment on the face of the patent) | / | |||
Feb 13 2001 | IWANE, MATSUMI | KASHIYAMA KOUGYOU INDUSTRY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 011561 | /0886 |
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