1921
active 1921-1947, publisher of psychological assessments, American
1901 - 1940
1901-1940, medical instrument manufacturer, London, England
1887 - 1935
active 1887 -1920s?, manufacturer of leather goods, picnic baskets and silver, London, ENgland
1904 - 1973
1904-1973, supplier of wholesale chemicals & drugs, England, British
1901 - 1988
Wright, Elsie
1902 - 1999
source; model railway maker
1907 - 1986
Griffiths, Frances
1915 - 1945
1915-1945, camera manufacturer, London
1896 - 1947
1896-1947, scientific instrument and radio manufacturer, Cambridge
1889 - 1999
active 1928-1954, laboratory apparatus; laboratory instrument maker, London, England
1897 - 2012
active 1897-1968, laboratory apparatus and instrument maker, London, England
1895
1895-1980s, manufacturer of medicinal lozenges, England
1925 - 1998
active 1925-1998, manufacturer of pharmaceutical and medical supplies, Liverpool
1919 - 1972
(1839)1919-1972, photographic retailer; pharmacist, London, England
1919 - 1995
1919-1995, multimedia publisher, educational film makers, Chicago
1888 - 1971
active 1888-1971, manufacturing chemist, Nottingham
1924 - 1967
active 1924/6-1967, electrical measuring & scientific instrument maker, London, England, British
1907
1907-1992, Button Makers, Birmingham
1897 - 1978
1897-1978, toy maker, Harborne, Birmingham, England
1889 - 1957
1889-1957, manufacturer of comptometers, Chicago, United States
1905 - 1968
active 1900-1960s, manufacturer of electrical measuring equipment, Hendon, England
1911 - 1991
1911-1991, singer and songwriter, England
1898 - 1931
1898-1931, recording company; gramophone and radio manufacturer, British
1891 - 1987
1891-1987, physiological instrument maker, London, England, British
1897 - 1987
1897-1987, electrical instrument maker, Orpington, Kent, England
1892 - 1974
1892-1974, manufacturer of radios, televisions, batteries, white goods and computers, Philadelphia, America
1921 - 1996
Williams, Trevor Illtyd
1917 - 1958
1917-1958, manufacturer of projectors and cine equipment, Leeds, United Kingdom
1886 - 1986
active 1879-1986, pharmacist and surgical instrument makers, English
1898 - 1968
active 1898-1968, compressor/engineering product manufacture, High Wycombe, Buckinghamshire, British
1892
1892-present (2008), electric company, American
1886 - 1926
1886-1926, optical instrument and camera manufacturer, Berlin
1913 - 1947
1913-1947, scientific instrument maker, Glasgow, Scotland & London, England
1889 - 1926
1889-1926, camera and cinema equipment manufacturer, Dresden, Germany
1890 - 1932
1890-1932, manufacturer of gas engines, Ashton-under-Lyne, England
1888
1888-1981, scientific instrument, optics, camera and cinema projector manufacturer, Leeds
1923
1923-current (2010), manufacturer, United States
1904 - 1990
Gandolfi, Frederick Louis
1899 - 1993
Kadoorie, Lawrence (CBE)
1888 - 1939
active 1888-1930s, printer, Harrow; London
1901 - 1979
1901-1979, inventor; photographer, British
1920 - 1958
1920-1958, crystallographer, British; English
1886
1886 -, scientific instruments supplier, Chicago, United States
1912
1891-active 1940s, silversmith; medalmaker, England
1885
1885-, manufacturer of clocks, United States
1895-c.1950, gas and laboratory equipment manufacturer, Warrington, Cheshire, England
1907 - 1945
1907-1927, camera and photographic equipment manufacturer, Rochester, New York
1904 - 1945
active 1904-1948, optical instrument maker (spectroscopes etc.), London, England
1903
1903-, manufacturer of scientific instruments, Acton, London; Watford, England
1910 - 1977
Walter, William Grey
