ITU-T-X.420 › Complete Document History
Message Handling Systems - Interpersonal Messaging System, Data Communication Netwoks
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1996 EDITION - MESSAGE HANDLING SYSTEMS - INT - Oct. 1, 1996
1997 EDITION CORRIGENDUM 1 - TECHNICAL CORRIGENDUM 1, 1997 - Aug. 1, 1997 |
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1992 EDITION - MESSAGE HANDLING SYSTEMS - INT - Sept. 1, 1992
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