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� Home : ITU-T : Publications : Recommendations : S�Series : S.21
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S.21�:�Use of display screens in telex machines �

Recommendation S.21

In force components
Number
 Title Status
S.21 (03/93)
� 		Use of display screens in telex machines � In force
�
�
Superseded and Withdrawn components
Number
 Title Status
S.21 (11/88)
� 		Use of display screens in telex machines � Superseded

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