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Human Factors (HF). Assignment of alphabetic letters to digits on standard telephone keypad arrays
STANDARD published on 1.8.2000
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Designation standards: STN ETS 300640
Classification mark: 870640
Catalog number: 80138
Publication date standards: 1.8.2000
SKU: NS-541850
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Slovak technical standard
Category: Technical standards STN
Norma definuje prideľovanie písmen abecedy číslam na štandarných telefónnych tlačidlových číselniciach.
1.12.2000
1.12.2000
1.12.2000
1.12.2000
1.12.2000
1.8.2000
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