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| Number | Title | Issue Date |
| D498259 | Folding pen | 11/09/2004 |
| 6679991 | Pervaporation device and irrigation mat Pervaporation device for the desalination of salt water comprising a channel or cavity for holding or transporting salt water and a liquid-water-impermeable, water-vapour-permeable non-porous membrane, which is made of a copolyether amide wherein the poly... | 01/20/2004 |
