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F. E. Becker and Co of 17/29 Hatton Wall, London, EC1. Telephone: Holborn 1436. Telegraphic Address: "Becker, Hatton Wall, London"
1872 First catalogue issued of scientific instruments.
1913 See also 1913 Becker's Physical Apparatus
1937 Listed Exhibitor - British Industries Fair. Laboratory Equipment for all branches of Industrial Research, and routine Tests. Makers of Scientific Instruments, "Nivoc" Analytical Balances, Lampblown Glassware, Thermometers, and Apparatus for Gas, Tar, and Oil Testing, etc. (Stand No. Cb.715) 
Became W. and J. George and Becker