
Swan electric lamp
1878-1879
1878-1879
circa 1897
1870
1862
circa 1871
1852
1898
1875
1880
1879
1775-1799 (original); 1900-1907 (model)
1853-1857
1871
1879-1896
circa 1842
1870
1846
1830 (original); 1967 (model)
1854
1845-1855
1856
1896
1879
1840
1857-1870
1848
1858
2000-100 BCE
1875-1885
1840
1850-1870
1870s
1886
1934
1850-1897
1900
1880
circa 1860
1860-1900
1864-1900
1870-1890
1871-1900
1851-1900
1850-1900
1850-1900
1860-1900
1879
1850-1859
1855-1900
1850