
Early inhaler for ether anaesthesia
1847-1848
1847-1848
1858
1801-1840 (original); 1901 (model)
1853-1857
1860
2000-100 BCE
1851
1850-1859
1849
1855
1854
1850
circa 1854
1860
1849
1850
1850-1857
1856
1853
1853
1852
1955; 1830
1850-1856
1850-1859
1850
circa 1854
1850-1860
1855
1857
1849
1851
1848
1858
circa 1860
1847
1859
1858
1855
1856
1848-1852
1854
1858
1855-1860
1893-4
1851
1934
1857-1858
1857-1858
1857-1858
1863-7