: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9

: C Cæ Có Cœ C- C. C2 Ca Cb Cc Cd Ce Cf Cg Ch Ci Cj Cl Cm Cn Co Cp Cr Cs Ct Cu Cv Cw Cx Cy Cz

: Cathode-ray Oscilloscope