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| US4834077 | 16 Sep 1986 | 30 May 1989 | | Sterile disposable linguiform laryngoscope blade sheath |
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| US5683350 | 21 Nov 1995 | 4 Nov 1997 | | Oral transluminating device |
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| US5993383 | 27 May 1999 | 30 Nov 1999 | | Laryngoscope blade with tongue controlling wing sections |
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| USD297363 | 8 Jul 1985 | 23 Aug 1988 | | Laryngoscope blade |
| USD312308 | 25 Nov 1987 | 20 Nov 1990 | | Laryngoscope blade |
| USD312500 | 25 Nov 1987 | 27 Nov 1990 | | Blade for laryngoscope |
| USD382640 | 21 Nov 1995 | 19 Aug 1997 | | Sinus transluminating instrument |
| USD435655 | 26 Nov 1999 | 26 Dec 2000 | | Laryngoscopy blade |
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| USD559982 | 2 Aug 2005 | 15 Jan 2008 | Hilbro Instruments (Pvt) Ltd. | Laryngoscope blade |
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| USD584817 | 5 Jan 2007 | 13 Jan 2009 | | Combined laryngoscope and optical prism |
| USD630740 | 23 Dec 2009 | 11 Jan 2011 | Intubrite, LLC | Laryngoscope blade |
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| USD630742 | 23 Dec 2009 | 11 Jan 2011 | Intubrite, LLC | Laryngoscope blade |
| USD630743 | 23 Dec 2009 | 11 Jan 2011 | Intubrite, LLC | Laryngoscope blade |
| USD630744 | 23 Dec 2009 | 11 Jan 2011 | Intubrite, LLC | Laryngoscope blade |
| USD630745 | 23 Dec 2009 | 11 Jan 2011 | Intubrite, LLC | Laryngoscope blade |
| USRE37861 | 31 Aug 2000 | 24 Sep 2002 | | Laryngoscope blade |