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A retro reflective optical ident system (IM-IS-033)

Last updated on 24 July 2014 3:58

RETRO-REFLECTIVE OPTICAL IDENT SYSTEM This system was developed for use in the Milford Tunnel tests as an event marker. The system has been shown to work, is cheap to build and undoubtedly can be applied to other areas. This note is circulated to bring the system to the attention...

Author(s): Read D.W.

Organisation(s): British Rail Research ;

1972

United Kingdom

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