DIN 9754:1977-12

Отменен

Office machines; adding and calculating machines, symbols — 4 стр.

Ссылочные документы

Отменен

Office machines; function and numeral symbols for calculating machines and for accounting machines — 9 стр.

Отменен

Office machines; keyboard layouts for numeric applications; ten key block-keyboard — 2 стр.

Отменен

Office machines; numeric keyboards; keyboard for adding machine operations — 2 стр.

Отменен

Office machines; function and numeral symbols for calculating machines and for accounting machines — 9 стр.

Отменен

Service automatic machines; classification and concepts — 8 стр.