
Early inhaler for ether anaesthesia
1847-1848
1847-1848
1865-1866
1870
1862
1858
1801-1840 (original); 1901 (model)
1845-1855
1866
circa 1846
1845-1855
1853-1857
1870s
1860
2000-100 BCE
1851
1850-1859
1849
1855
1846-1859
1854
1842
1850
circa 1854
1864
1860
1849
circa 1868
1841
1842
1855-1870
1870s
1861-1866
circa 1861
1865
1845
1845
1863-1865
1850
1850-1857
1845
1842
1856
1861
1861
1853
1865
1867-1868
1853
1852
1955; 1830