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The ornamental design for a portable mandrel, as shown. |
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FIG. 1 is a front perspective view of a portable mandrel showing my new design, taken from above;
FIG. 2 is a rear perspective view thereof, taken from below;
FIG. 3 is a bottom plan view.
| Patent | Priority | Assignee | Title |
| D640298, | Jan 11 2011 | Stepped mandrel |
| Patent | Priority | Assignee | Title |
| 1050575, | |||
| 979922, | |||
| 235160, | |||
| FR424624, |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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