ITU-T S.30-1989 Standardization of Basic Model Page-Printing Machine Using International Alphabet No. 5 - Telegraph Services Terminal Equipment (Study Group IX) 1 pp
Standardization of Basic Model Page-Printing Machine Using International Alphabet No. 5 - Telegraph Services Terminal Equipment (Study Group IX) 1 pp
ITU-T S.30-1989 history
1989ITU-T S.30-1989 Standardization of Basic Model Page-Printing Machine Using International Alphabet No. 5 - Telegraph Services Terminal Equipment (Study Group IX) 1 pp