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I claim the ornamental design for a hand held underwater propulsion device, as shown and described.
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The broken lines are for environmental purposes and form no part of the claimed invention.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Oct 27 2009 | Mayhem UK Ltd | (assignment on the face of the patent) | / | |||
Dec 30 2009 | WHITE, MATTHEW | Mayhem UK Ltd | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 023723 | /0733 |
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