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Inventor: Ellis; James M.
Address: Port Lincoln, AU
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4166462 |
Self-propelled shark-proof cage |
September 4, 1979 |
| The invention relates to a self-propelled shark-proof cage which is provided with at least one access opening and a propeller mounting frame having pivot means coupling it to the cage so that the propeller mounting frame is pivotal about two axes at right angles to each other, and the |
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