Referenced by|
| US4064965 | 11 Mar 1976 | 27 Dec 1977 | | Stethoscope | | US4903794 | 23 Mar 1988 | 27 Feb 1990 | | Acoustical amplifying stethoscope | | US6478744 | 18 Dec 2000 | 12 Nov 2002 | Sonomedica, LLC | Method of using an acoustic coupling for determining a physiologic signal | | US7416531 | 4 Oct 2002 | 26 Aug 2008 | | System and method of detecting and processing physiological sounds |
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