RADIOISOTOPES
Online ISSN : 1884-4111
Print ISSN : 0033-8303
ISSN-L : 0033-8303
Radiation Railway Signals with Radioisotopes Located on Grounds and their Mechanisms of Fail-Safe Operations
Akira KOBAYASHI
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1962 Volume 11 Issue 4 Pages 344-349

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© Japan Radioisotope Association
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