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Performance check on Zeiss TH2 theodolite (IM-SM-011)

Last updated on 02 August 2013 2:51

This Internal Memo describes checks carried out on delivery of a new Zeiss TH2 Theodolite No. 107199. All the checks were carried out by at least two observers and in some cases three.

Author(s): Powell M C.

Organisation(s): British Rail Research ;

1974

United Kingdom

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