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| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.050.30 : Equipment for telex, teletext, telefax
|
| Number of pages | 23 |
| Modified by | ITU-T T.31 AMD 1 (1996-07)
|
| Year | 1990 |
| Document history | |
| Country | International |
| Keyword | CCITT T.31;ITU-T 31;31;ITU-T T.31 |