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| US3950798 | 26 Ago 1974 | 20 Abr 1976 | | Easily washable and reconstructable mattress | | US4711067 | 16 Abr 1985 | 8 Dic 1987 | Giuliano Magni
Dino-Franco Magni | Method of packaging a single mattress to a small size to be conveniently carried | | US6115861 | 22 Abr 1998 | 12 Sep 2000 | PaTMark Company, Inc. | Mattress structure | | US6460209 | 18 Ene 2000 | 8 Oct 2002 | Hill-Rom Services, Inc. | Mattress structure | | US6487739 | 1 Jun 2000 | 3 Dic 2002 | Crown Therapeutics, Inc. | Moisture drying mattress with separate zone controls | | US6687935 | 1 Jul 2002 | 10 Feb 2004 | Hill-Rom Services, Inc. | Mattress structure | | US6687937 | 16 May 2002 | 10 Feb 2004 | Crown Therapeutics, Inc. | Moisture drying mattress with separate zone controls | | US6952852 | 23 Dic 2003 | 11 Oct 2005 | Hill-Rom Services, Inc. | Mattress structure |
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