IEC - 60050 GROUP 31
International Electrotechnical Vocabulary Group 31: Signalling and Security Apparatus for Railways
inactive, Most Current
| Organization: | IEC |
| Publication Date: | 1 January 1959 |
| Status: | inactive |
| Page Count: | 50 |
Document History
60050 GROUP 31
January 1, 1959
International Electrotechnical Vocabulary Group 31: Signalling and Security Apparatus for Railways
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