
Laennec's stethoscope
1815-1825
1815-1825
1830
1775-1799 (original); 1900-1907 (model)
1821
1820
1829
1812
1830
1825
1826
1893-4
1863-7
1829
2000-100 BCE
1813
1820-1830
1810-1830
1829
1826
1815
1815
1810-1817
1821
1812
1814
1816
1812
circa 1810
1815
1820
1955; 1830
1826
1990-96
1830
circa 1821-1825
1772 (original); 1919 (model)
1819
circa 1810
1814
1815-1825
1815
1824
1823-1825
1829
1822
1829
1829
1813
1705-1737
1826