Active
Standard
Most Recent
DIN ETS 300640:1997-04
Human Factors (HF) - Assignment of alphabetic letters to digits on standard telephone keypad arrays; English version ETS 300640:1996
Preview
Summary
The document defines the assignment of alphabetic letters to digits on telephone keypad arrays.
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 04/01/1997 |
| Page Count | 12 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
No products.