|
| US4003713 | 14 Ago 1975 | 18 Ene 1977 | | Multiple test tube evaporator |
| US4273416 | 2 Ene 1979 | 16 Jun 1981 | | Indicating test tube rack |
| US4453639 | 12 May 1982 | 12 Jun 1984 | | Rack or holder for test tubes |
| US5133939 | 21 Mar 1991 | 28 Jul 1992 | Barnstead Thermolyne Corporation | Test tube holder and tray assembly |
| US5450785 | 17 Ene 1995 | 19 Sep 1995 | | Cone cupcake baker |
| US6250480 | 29 Jul 1999 | 26 Jun 2001 | Justin A. McGuinness | Handle supporting fishing rod rack |
| USD506833 | 23 Ene 2004 | 28 Jun 2005 | | Test platform |
| USD507658 | 27 Ene 2004 | 19 Jul 2005 | | 8GC platform |
