Keywords: HP-15C Calculator Backside-2.jpg en Programmable Calculator HP-15C 1980ies Backside with Error Codes etc de Taschenrechner HP-15C 1980er Jahre Rückseite mit Fehlercodes etc HP-15C_Calculator_Backside jpg 50 2013-02-26 10 54 UTC HP-15C_Calculator_Backside jpg Pittigrilli derivative work Hic et nunc cut out colour contrast sharpness Hic et nunc HP-15C_Calculator_Backside jpg Cc-zero Original upload log This image is a derivative work of the following images File HP-15C_Calculator_Backside jpg licensed with Cc-zero 2013-02-25T16 01 54Z Pittigrilli 3264x2448 2513495 Bytes <nowiki> en Programmable Calculator HP-15C 1980ies Backside with Error Codes etc de Taschenrechner HP-15C 1980er Jahre Rückseite mit Fehlercodes etc own Author </nowiki> Uploaded with derivativeFX HP-15C |