Citada por|
| US4010740 | 21 Abr 1976 | 8 Mar 1977 | ABM-Mavello AB | Speculum | | US4314551 | 6 Mar 1980 | 9 Feb 1982 | | Laryngoscope | | US4432351 | 16 Jun 1981 | 21 Feb 1984 | Institute for Industrial Research and Standards | Vaginal speculum | | US5377667 | 3 Dic 1992 | 3 Ene 1995 | Michael T. Patton | Speculum for dilating a body cavity | | US5505690 | 30 Dic 1994 | 9 Abr 1996 | Michael T. Patton | Speculum for dilating a body cavity | | US6436033 | 22 Ago 2001 | 20 Ago 2002 | MCA Medical Products Pty Ltd. | Speculum | | US7566302 | 28 Jul 2005 | 28 Jul 2009 | Synthes USA, LLC | Expandable access device | | US8062217 | 28 Ene 2008 | 22 Nov 2011 | Theken Spine, LLC | Surgical retractor with removable blades and method of use |
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