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| Chinese National Standard Category: Code, character set and character recognition |
| English Title: | Information processing-Guide for the definition of 4-bit character sets derived from the 7-bit code |
| Chinese Title: | 信息处理-从信息处理交换用七位编码字符集中派生四 位字符集的导则 |
| Standard No.: | GB 7420-1987 |
| Category No.: | L71 |
| Issued by: | National Bureau of Standards |
| Issued on: | 1987-03-14 |
| Implemented on: | |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 4000 words |
| Similar Standards: | GB/T 12037-1989 SJ/T 11242.1-2001 DB11/T 416.1-2007 SJ/T 11242.2-2001 GB/T 25902.6-2014 SJ/T 11242.3-2001 CY/T 232-2020 SJ/T 11242.4-2001 GB 7420-1987 GB/T 12038-1989 DB11/T 124-2007 DB31/T 1250-2020 GB/T 25914-2023 GB/T 26237.5-2023 GB/T 26237.13-2023 GB/T 26237.11-2023 GB/T 26237.14-2023 GB/T 29268.7-2023 GB/T 37036.9-2023 GB/T 42587-2023 |
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