YD T 677-1994 中西文电传打字机质量分等标准.pdf

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YD T 513-1992 电子电传打字机技术要求.pdf

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ITU-T F 71 FRENCH-1993 INTERCONNECTION OF PRIVATE TELEPRINTER NETWORKS WITH THE TELEX NETWORK《专用电传打字机网与用户电报网的互连》.pdf

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GOST 15607-1984 Printing teletypes for 5-elements code Basic parameters and general technical requirements《五位电码通断式电传打字机 基本参数和一般要求》.pdf

GOST 25220-1982 Prints tessellated for printing teletypes for 5-elements code Symbol sizes and his contour《五单元码电传打字机用花体字 字符尺寸及字型》.pdf

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