
Laennec's stethoscope
1815-1825
1815-1825
1775-1799 (original); 1900-1907 (model)
1830
1820
1821
1829
1820
1803-1828
1821-1831
1955; 1830
1808
1805
1807
1808
1809
1829
circa 1805
1826
1831
1807
1815
1815
1810-1817
1893-4
1863-7
1808
1807
1821
1805
1812
1805-1815
1830
1807
1812
circa 1808
1829
1807
1814
1816
1825
2000-100 BCE
1813
1820-1830
1831
1810-1830
1826
1812
circa 1810
1815
1806