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Title: Heythrop Mk V Phonic Chronoscope, a type of direct reading r [Go to resource]
Description: Heythrop Mk V Phonic Chronoscope, a type of direct reading reaction timer invented by J. Leycester King and made by H. Tinsley and Co., London, England, 1933-1937 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: chronoscope Temporal: 1933-1937 Source: Science Museum Creator: Tinsley,H. and Co. (maker) Identifier: 1993-761 Go to resource More Like this...
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