active 1921-1947, publisher of psychological assessments, American The Psychological Corporation 1921
1875-1969, meteorological, aviation & surveying instrument manufacturer, London, England Short and Mason Limited 1875 - 1969
active 1887 -1920s?, manufacturer of leather goods, picnic baskets and silver, London, ENgland Drew and Sons 1887 - 1935
1879-current (2020), manufacturer of surgical instruments, London, England Downs Surgical Limited 1879
1904-1973, supplier of wholesale chemicals & drugs, England, British British Drug Houses Limited 1904 - 1973
1930s-1978, manufacturer of uniforms and helmets, England J Compton Sons and Webb Limited 1930 - 1978
1896-1947, scientific instrument and radio manufacturer, Cambridge W G Pye and Company Limited 1896 - 1947
active 1928-1954, laboratory apparatus; laboratory instrument maker, London, England Griffin and Tatlock Limited 1889 - 1999
c. 1875 -1998, manufacturer of ceramics, Burslem, England Dunn, Bennett and Company Limited 1878 - 1998
active 1897-1968, laboratory apparatus and instrument maker, London, England Baird and Tatlock (London) Limited 1897 - 2012
active 1925-1998, manufacturer of pharmaceutical and medical supplies, Liverpool Evans Medical Limited 1925 - 1998
1878-1969, mathematical & scientific instrument maker, Manchester & London, England J Halden and Company Limited 1878 - 1969
(1839)1919-1972, photographic retailer; pharmacist, London, England Wallace Heaton Limited 1919 - 1972
1919-1995, multimedia publisher, educational film makers, Chicago Society for Visual Education Inc. 1919 - 1995
active 1924/6-1967, electrical measuring & scientific instrument maker, London, England, British Cambridge Scientific Instrument Company Limited 1924 - 1967
1880-1995, laboratory equipment manufacturer (chemistry, physics), London, England A Gallenkamp and Company Limited 1880 - 1995
c.1880 -1992, stationers; scientific equipment manufacturer, Manchester, England A G Thornton Limited 1880 - 1992
1889-1957, manufacturer of comptometers, Chicago, United States Felt and Tarrant Manufacturing Company 1889 - 1957
active 1900-1960s, manufacturer of electrical measuring equipment, Hendon, England Everett, Edgcumbe and Company Limited 1905 - 1968
1898-1931, recording company; gramophone and radio manufacturer, British Gramophone Company Limited 1898 - 1931
active 1871-1959, manufactuer of sewing machines; manufacturer of calculating machines, Braunschweig, Germany Grimme Natalis and Co 1871 - 1959
1891-1987, physiological instrument maker, London, England, British C F Palmer (London) Limited 1891 - 1987
1892-1974, manufacturer of radios, televisions, batteries, white goods and computers, Philadelphia, America Philco Corporation 1892 - 1974
active 1863 -1952, manufacturer of pharmaceuticals; manufacturer of dyestuffs, German Farbwerke vorm Meister Lucius und Brüning 1880 - 1952
active 1868-1968, optical instrument maker; clock maker, Manchester, England Thomas Armstrong and Brother 1868 - 1968
