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| Number | Title | Issue Date |
| 6668406 | Spring units A spring unit (2) for incorporation into a bed, divan bed, mattress, or other upholstery unit comprises a first spring (4) and a second spring located (6) within said first spring (4). The first spring (4) may be a pocketted spring, or the second spring m... | 12/30/2003 |
| 6622384 | Method and apparatus for forming spring units A method and apparatus for forming spring units for use in a mattress, bed, divan bed, or other upholstered unit, the method including the step of inserting a second spring (12A) into a first spring immediately prior to said first spring being formed into... | 09/23/2003 |
| 6523812 | Spring units The invention discloses a spring unit for use in a sprung unit such as a bed, divan bed, mattress, or other upholstered unit, the spring unit comprising a pocket of fabric or other suitable material and having at least two sub-pockets, each of said sub-po... | 02/25/2003 |
