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| Bildschirmtextdienst m | |||
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| Kommunikation über Computerterminals | |||
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communications by computer terminals : 4 phrases, 1 sujets |
| Brevets | 4 |
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| Bildschirmtextdienst m | |||
| |||
| Kommunikation über Computerterminals | |||
|
communications by computer terminals : 4 phrases, 1 sujets |
| Brevets | 4 |