DIN 2137-1/A1:2001-10

Отменен

Text and office systems - Keyboards - Part 1: German keyboard for typewriters; Key arrangement and allocation of characters to keys; Amendment A1

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DIN 2137-11:2003-09

Отменен

Text and office systems - Keyboards - Part 11: German keyboard for data and text processing as well as for typewriters; Principles governing the allocation of characters or functions to keys and the placement of their symbols on the keys — 15 стр.