active 1904-1948, optical instrument maker (spectroscopes etc.), London, England Adam Hilger Limited 1904 - 1945
1807-1868, active 1837-1868, optician, optical instrument maker (telescopes), English; British Cooke, Thomas 1807 - 1868
1807-1873, active 1840-1845, optician; daguerreotypist; optical instrument maker, French Lerebours, Nöel Marie Paymal 1807 - 1873
active 1790-1820, mathematical, philosophical, nautical & optical instrument makers, Paris, France Jecker, Francoise-Antoine 1765 - 1834
1897-1948, optical, mathematical & philosophical instrument maker, London, England Ross Limited 1897 - 1948
1771-1831, mechanical engineer, tool maker & inventor; patentee English; British Maudslay, Henry 1771 - 1831
1821-1885, astronomer; astrophysicist; optical instrument maker, Polish Prazmowski, Adam Jozef Ignacy 1821 - 1885
1857-1969, optical instrument makers (microscope), London, England James Swift and Son Limited 1857 - 1969
1682-1744, natural philosopher; optical instrument maker; mathematician, British; English Hadley, John 1682 - 1744
1770-1841, active 1804-1841, optician and optical instrument maker, French Chevalier, Vincent Jacques Louis 1770 - 1841
active 1868-1909/14, optical & mathematical instrument maker, Irish; British Grubb, Sir Howard 1844 - 1931
1859-1897, optical, mathematical & philosophical instrument maker, London, England, British Ross and Company 1859 - 1897
active 1849-1886, optician, optical designer & optical instrument maker, French Duboscq, Jules 1817 - 1886
active 1868-1968, optical instrument maker; clock maker, Manchester, England Thomas Armstrong and Brother 1868 - 1968
active 1948-1969, optical instrument maker (spectroscopes etc.), London, England Hilger and Watts Limited 1948 - 1969
1695-1766, active 1720-1750, mathematical, philosophical, optical instrument maker, London, England Cole, Benjamin 1695 - 1766
1793-1860, active 1821-1826, optical & mathematical instrument maker, English; British Simms, William 1793 - 1860
1768-1816, active 1789-1816, mathematical, optical and philosophical instrument maker, English Barnett, Thomas 1768 - 1816
active, 1812-1856, optical, mathematical, philosophical & nautical inst. maker & optician, British Newman, John Frederick 1783 - 1860
active 1832-1859 , optician and optical instrument maker, French Chevalier, Charles Louis 1804 - 1859
active 1818-1856, optician, optical, mathematical & philosophical instrument maker, London, England Watkins & Hill 1818 - 1856
active 1874-1902, optical instrument maker (spectroscopes etc.), British (naturalised); German Hilger, Otto 1850 - 1902
active 1835-1875, optical, nautical & mathematical instrument maker, London, England Hughes, Henry 1835 - 1875
1746-1815, active 1774-1803, optical, mathematical & philosophical instrument maker, Scottish Miller, John 1746 - 1815
active 1852-1912, optical, surveying and mathematical instrument makers, English J H Steward 1852 - 1912
active 1858-1883, optical instrument maker (microscopes & telescopes), American Tolles, Robert B 1822 - 1883
active 1796-1831, optician, optical & mathematical instrument maker, English; British Bancks, Robert 1796 - 1831
1750-1795, [Adams the Younger] active 1772-1795, mathematical instrument maker; globe maker, English; British Adams, George 1750 - 1795
active 1841-1845, optician, optical, mathematical & philosophical instr. maker, Manchester, England Abraham and Dancer 1841 - 1845
active 1820-1852, optician; optical, mathematical, astronomical & philosophical instrument maker Dollond, George 1774 - 1852
1731-1820, active from 1750, optical instrument maker, scientific instrument maker, British Dollond, Peter 1731 - 1820
1704-1782, active 1738-1777, science lecturer, philosophical, mathematical & optical instrument maker, Chichester, Sussex; London, England, British Martin, Benjamin 1705 - 1782
active 1851-1906, optical instrument maker (microscopes), English; British Powell, Thomas Hugh 1834 - 1925
1801-1870, optical instrument maker (microscope & telescope), German Steinheil, Carl August 1801 - 1870
active 1788-1817, mathematical, philosophical (globes) & optical instrument maker, English; British Adams, Dudley 1760 - 1830
active 1830-1867, optical instrument maker (astronomical & geodetical), German Repsold, Adolf 1806 - 1871