Iskani niz je bil najden v PREVODIH:
Bestätigungsschreiben
en confirmatory letter, letter of acknowledgement, letter of confirmation, quality system certificate
Prüfzeichen
en approval mark, certificate of quality, check character, check digit, check signal, error detection character, mark of approval, mark of conformity, parity character, test mark, test pattern, test symbol, testing character, testing mark
Qualitätsnachweis
en certificate of quality, quality certificate, quality verification