
Early inhaler for ether anaesthesia
1847-1848
1847-1848
circa 1832
1820
1801-1840 (original); 1901 (model)
1823
1838
1821
circa 1846
1829
2000-100 BCE
1849
1840
1842
1850
1837
1821-1850
1833
1849
1841
1842
1835
1834
1829
1834
1834
1845
1845
1830-1850
1850
1838
1826
1845
1837
1826
1842
1836
1834-1844
1837
1820
1840-1845
1839
1955; 1830
1830-1850
1822-1850
1825-1835
1837
1822-1840
1850
1825
circa 1840